Specs are compiled from manufacturer listings and verified buyer reviews and can change over time — please confirm the key details on the product page before buying.
You want your wires to reach the garage, the pool pad, or the generator without water seeping in, without rust eating the pipe, and without a tug-of-war every time you pull a cable. Every pick here is true 1-1/4 inch trade-size flexible non-metallic conduit (plastic tubing, not metal) built for outdoor and direct-burial runs, so you can match one to your job and get on with it.
I’m Mohammad Maruf — the founder and writer behind KitchPrep. This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.
You will see the difference between wall thickness, outside diameter, and the fittings that come in the box, because those are what decide whether a run goes smoothly. Here is what separates a good 1 1/4 Inch Conduit from one that fights you the whole way.
Our Picks at a Glance
How To Choose The Best 1 1/4 Inch Conduit
Start with the trade size, because it is the number that trips up more buyers than anything else. A 1-1/4 inch conduit is named for its trade size, not the pipe you measure across the outside. The real outside diameter on the kits here lands around 1.63 to 1.65 inches, so a hole saw or step bit sized for a smaller pipe will not cut it.
Know your actual outside diameter before you drill
If you are punching through a wall, a panel knockout, or a rim joist, that outside diameter decides which bit you grab. The Sealflex-style runs like the Sealproof and the AISIMEE kit sit near 1.63 to 1.65 inches across, and the Elecoman spells its own range out as roughly 1.63 to 1.65 inches (41.5 to 42 mm). Rough in the hole to match, and the connector slips in without a fight.
Wall thickness sets how tough the run is underground
Flexible non-metallic conduit gets its crush resistance from wall thickness. On this list that runs from 0.12 inches up to around 0.125 inches on the thickest PVC jackets, and the Geowaky kit is listed with a thick 7.1 mm wall. Thicker walls hold up better under soil, gravel, and foot traffic. Thinner walls bend with less effort, which matters when you are working in a tight attic or under a deck.
Count the connectors before you buy
A kit with straight and 90-degree fittings saves a separate trip and keeps the run watertight at every turn. The Elecoman and AISIMEE kits each ship with 5 straight and 3 90-degree fittings. The Geowaky 50-foot kit includes 5 straight and 5 angle fittings. The smaller Wocloer kit carries 4 straight and 2 angle fittings. More corners means more fittings, so match the count to the path you are actually running.
Quick Comparison
| Model | Best For | Length | Outside Diameter | Nominal Wall Thickness | Amazon |
|---|---|---|---|---|---|
| Sealproof Type B★ Best Overall | Long outdoor runs in harsh weather | 100 feet | 1.65 inches | 0.125 inches | Amazon |
| Feotech 25 FT KitBest Short Run | Compact EV charger and garage runs | 25 feet | — | — | Amazon |
| Wocloer Connector KitGenerator Ready | Generator transfer switch hookups | 25 feet | 1.64 inches | 0.12 inches | Amazon |
| Elecoman 25ft Kit | Versatile residential and commercial work | 25 feet | 1.63 inches | 2.5 mm | Amazon |
| AISIMEE 25FT Kit | Outdoor kitchens and EV wall chargers | 25 feet | 1.63 inches | 0.125 inches | Amazon |
| Geowaky 50 FT Kit | Trench runs and heater installs | 50 feet | 1.63 inches | 7.1 mm | Amazon |
| Ultra Flex PVC Pipe | Tight quarters where bends are the challenge | 50 feet | 1.25 inches | — | Amazon |
| HydroMaxx 50 ft Kit | Generator feeds with fittings included | 50 feet | — | — | Amazon |
| HydroMaxx 100 ft Roll | Long underground runs in one piece | 100 feet | 1.25 inches | — | Amazon |
In‑Depth Reviews
1. Sealproof 1-1/4″ Dia Flexible Non-metallic Liquid-Tight Electrical Conduit Type B, UL Listed, 1-1/4-Inch, 100 Feet
Our pick — over 4.5★ from 950+ verified ratings; the strongest balance of quality and price.
A full 100 feet of UL Listed Type B flex for long outdoor and direct-burial runs.
One roll gives you 100 feet of conduit, enough to reach a detached garage, a pool pad, or a generator without a splice in the middle. The trade size is 1-1/4 inch, the nominal wall is 0.125 inch, and the outside diameter is 1.65 inch. At 0.125 inch, that wall resists soil weight and foot traffic better than the 0.12-inch jackets here. As owners put it about a hot tub relocation: the wire ran through this protective tubing and worked perfectly to keep weather off the conductors.
The pipe is virgin PVC (brand-new plastic, never recycled), so it is non-metallic and will not corrode, and the inside is smooth so the wire glides instead of scraping. That smooth bore matters on 100 feet — pulls get harder the longer the run, and a rough interior turns a quick job into a two-person tug-of-war. Sealproof says it is 50 percent lighter than metallic conduit with no sharp edges or burrs, so it will not nick a conductor as you feed it. It also cuts with a utility knife or a PVC cutter, so you can terminate it anywhere along the roll you picked up. What wins people over is the jacket quality — the plastic resists abrasion, oil, water, acid, and metal shavings, and by its UL rating the same pipe takes heat as high as 80°C dry and 60°C wet.
Here is the honest catch that shows up again and again: pulling wire through a full 100 feet of flex is genuinely hard work, and that is the one consistent friction point in the reviews. Plan for it — use a fish tape and cable lubricant, or split a long run into shorter pulls with a junction — and the job goes far smoother. The stiffness also tightens in cold weather, so a roll left in a freezing garage will want a warm-up before it plays nice. None of that changes what the pipe is for; it just means you should not expect to glide a heavy bundle end to end on a 20-degree morning.
Where it earns its keep
- PVC jacket resists corrosion, oil, water, and acid, and is rated for direct burial and sunlight
- UV and sunlight resistant, and approved for direct burial in a trench
- Made in the USA and UL Listed under File No. E-129973
- Cuts fast with a utility knife or PVC cutter, no threading required
What to plan around
- Wire will not pull itself through 100 feet — bring lubricant and a fish tape
- Cold weather stiffens the PVC until it warms, so it bends harder in winter
Built for the long run: This is your pick when the wiring goes far from the panel — detached shops, pool equipment, generator feeds, or a full yard loop that needs one continuous trench of protection.
Weigh the pull: If your run is short, a 25-foot kit like the Feotech will get you done with a fraction of the wire-pulling frustration.
2. 1 1/4 Inch Flexible Conduit 25 FT Non Metallic Liquid-Tight Conduit.1-1/4″ Dia
A tidy 25-footer that coils for storage and handles short panel-to-load runs without leftover waste.
Twenty-five feet is the balance for an EV charger mounted a few feet from the panel, a mini-split disconnect, or a small subpanel feed — and you will not have half a roll sitting in the corner afterward. The PVC is virgin material, so it holds up against corrosion, oil, and water, and it is non-metallic. Buyers report running it into an EV charger setup — flexible and sturdy with a smooth interior that eases wire pulls, and connectors that lock down tight for a professional finish.
One size lesson is worth reading twice. The 1-1/4 inch figure is trade size, so the outside diameter is larger, and one buyer found a smaller hole saw would not cut it — a 1-3/8 inch bit through a step saw made the difference. That is not a defect, just the reality of trade sizing. Rough in the hole at the right diameter and the fitting seats cleanly on the first try. The O-ring on the nipple seals the connection, so once you tighten the lock ring, the joint is watertight and stays that way.
Feotech calls out zero tools needed for the cut — you score and snap with a utility knife and trim the edge. That makes it genuinely friendly for a first-timer running a single circuit. It also feels lighter than the thicker-jacketed runs on this list, which is not a durability claim so much as a handling one: it is easier to hold overhead and feed into a box on your own. The one honest note is that this is a light-duty jacket compared to the buried-heavy picks, so treat it as outdoor protection for cabling rather than an industrial beat-on-it-sewer line.
The compact-kit advantage: Twenty-five feet with fittings ready to go means a fast, low-waste install for an EV charger, a garage subpanel, or a short exterior drop.
Measure the hole first: A 1-1/4 inch trade size needs a bigger punch through wood or siding than the name suggests, so grab a 1-3/8 inch step bit before you drill.
Reach for the Feotech when your run is short and you want the whole kit in one box with fittings included. If your wire path stretches past 40 feet, the longer kits lower down this list will do you better.
3. Liquid-Tight Conduit, 1-1/4 inch 25 Foot Flexible Non Metallic Electrical Conduit and Connector Kit,With 4 Straight and 2 Angle Fittings
A weatherproof connector kit built for the run between a transfer switch and a standby generator.
Wire capacity is the reason this one earns its slot. Owners mention fitting four #2 copper conductors plus a bundle of control wires inside the 1.4 inch inner diameter, on a run from a transfer switch out to a standby generator, and reporting a great waterproof connection. That is a real-world proof point, not a spec-sheet claim — the barrel is wide enough for a serious conductor bundle plus control leads in the same pull. The outside diameter reads 1.64 inches, which is the number to match against your knockout punch. Against the Sealproof Type B above, the wall here is 0.12 inches versus 0.125 inches, a hair thinner jacket, and the outside is 1.64 inches versus 1.65 inches — near-identical real-world sizing between the two.
You get 4 straight and 2 angle connectors in the box, and Wocloer states the connectors need no tools: push the conduit onto the ferrule and tighten the dome seal nut. Owners put the value plainly — the price beats the wholesale box store by a wide margin, and it has held up through repeat jobs. The PVC jacket resists corrosion, wear, oil, and water, and is rated for direct burial and sunlight. If you run it underground or along a south-facing wall, the UV resistance and the burial rating both come into play and do their job.
The recurring gripe worth knowing about: a coil of flex can arrive with a set curve from packing, and one run had a permanent kink that would not flatten outdoors. Wocloer handled the complaint directly, and sellers who back their product go a long way when something goes wrong. For most runs the curve relaxes as soon as the pipe warms in the sun, and the connector ring lets you pull the wind out as you tighten. Just be ready to work the first couple of feet if it arrives tightly coiled.
Suits a serious panel feed: Ideal when you need to fit several large conductors plus control wiring through one conduit on a generator or subpanel job.
Watch the coil memory: Plan on a warm-up and a little persuasion if the roll shows up tightly wound.
4. 1-1/4(1.25) inch 25ft Liquid-Tight Conduit and Connector Kit,Flexible Non Metallic Liquid Tight Electrical Conduit Kit with 5 Straight and 3 90-Degree Connector Fittings,Actual OD Approx. 1.63″
The do-it-both-ways kit — residential or commercial, with enough fittings to turn eight corners.
Elecoman does something the other brands skip: it prints the trade-size warning right on the listing. The 1-1/4 inch name is the U.S. electrical conduit trade size, and the actual outside diameter is about 1.63 to 1.65 inches (41.5 to 42 mm), with an inner diameter around 1.38 inches (35 mm). If you are eyeing this for a specific knockout or wiring bundle, that transparency is worth its weight. The jacket is a 2.5 mm nominal wall of virgin PVC, UL Listed under File No. E529256, and like the Sealproof above it is 50 percent lighter than metallic flex with no burrs to nick your conductors.
Where it pulls ahead on versatility is the hardware in the box: 5 straight and 3 90-degree fittings, so a run with a couple of tight turns does not send you back for a coupler. The PVC resists corrosion, abrasion, oil, water, and acid, and it is rated for sunlight exposure and direct burial. Buyers use it both at home and on job sites, and the value-for-money verdict comes through loud. Owner feedback on the fit and finish is largely positive, with the connectors doing what connectors should.
On the mixed side: a few buyers found the connectors over-tighten and then fight you when you try to remove them, and some noted the jacket stiffens in extreme cold and is less rugged than a full metal run. None of that is a dealbreaker on a residential job, but on a run where you will be backing out fittings, ease in — and use a strap wrench if you must. If brutal handling and constant removal are part of your day, a metal flex might suit you better. For most home and light commercial work, the trade-off is fine.
What it gets right
- Eight fittings included — 5 straight and 3 angle — for a run with multiple turns
- Honest sizing disclosed: OD about 1.63 to 1.65 inches, ID about 1.38 inches
- UL Listed and rated for sunlight exposure and direct burial
- Virgin PVC with a smooth interior for easier wire pulls
What to know before you buy
- Connectors can over-tighten and become hard to remove once seated
- Jacket stiffens in extreme cold and is less rugged than metal conduit
Pick this for corner-heavy runs: Residential or commercial, this is the kit for a path with multiple 90s where the fittings count matters more than anything.
Think twice if you rework often: Frequent disassembly of tight connectors is where owners grumble, so a metal flex may be the better call for that pattern.
5. Liquid Tight Conduit 1-1/4inch 25FT,Flexible Non-Metallic Liquid Tight Flex Electrical Conduit and Connector Kit with 5 Straight and 3 90-Degree Conduit Connector Fittings
Thick-jacketed flex that holds its shape for outdoor kitchens and heavy EV wall charger feeds.
AISIMEE ships the same fitting count as the Elecoman above — 5 straight and 3 angle connectors — and matches it with a 0.125 inch nominal wall and a 1.63 inch outside diameter. That wall thickness lands it in the tougher tier, which is why it feels substantial when you handle it. Owners use it for exactly the situations where that matters: a 6AWG EV wall charger feed that ran clean through, and an outdoor kitchen that pulled the whole kit together in one order. Both are jobs where you want a jacket that will not flex into a pinch point and grip the wire.
Owners note how solid the run feels and how much product comes in the box. The smooth PVC interior lets wires pull without grinding, and the PVC resists corrosion, abrasion, oil, water, and acid so it survives a seasonal outdoor kitchen. The material is non-metallic, so there is no rust risk, and the pipe is rated for sunlight and direct burial, which means it is comfortable under a deck, along a fence line, or run up to a rooftop unit.
The one point where AISIMEE splits its own reviews is flexibility. This is a stiff conduit by design, and the extra wall does mean it will not curl like a garden hose. On a short straight run that is a feature. On a run that needs several tight radius turns in a small space, you will feel it. Consider whether your path is straight-ish or full of 90s before you commit — the fittings help, but a bendy path in a cramped chase wants a softer jacket.
Thickness you can feel: The 0.125 inch nominal wall gives it real heft for protected runs, and the fittings cover a straightforward path.
Stiffer than the softer jackets: If your route wins the corner-count contest in a tight space, this one will push back.
Choose the AISIMEE for a short, sturdy run to an EV charger or an outdoor kitchen circuit where you want thickness over pliability. If you need to bend your way around a maze, look at the softer PVC runs further down.
6. 1-1/4 Inch 50 FT Liquid-Tight Conduit and Connector Kit
Fifty feet with a full set of fittings — enough for a heater, a landscape run, or a long garage feed.
Geowaky covers the middle-distance job that the short kits cannot and the 100-foot rolls overdo. The stated wall is 7.1 mm thick, which puts it in the serious-jacket end of this list. The kit ships with 5 straight and 5 angle fittings, one more angle than the Elecoman and AISIMEE at the same short-run prize tier. Owners use it for trench work and heater installs where the run sits partway down a garage wall. The non-metallic construction resists corrosion and cannot conduct electricity, so a buried or clipped run is not carrying a metal path back to the panel.
Sun resistance is a real point here. Customers note a roll of this conduit sat outdoors three years without sun degradation. The pipe is PVC, smooth on the inside, and rated for direct burial, so it is at home in a trench and above ground in the same job. Straight fittings in the box run slightly oversized, and the pipe lays flat in a trench and cuts to size with a utility knife.
One honest note: the connector plastic on this kit reads thinner than what you would get from a top-shelf US-made conduit, and the conduit itself carries minimal markings. The metal screw nut and O-ring fit snugly, and for low-voltage and general wiring protection the kit does exactly what you need. If your job requires a specifically-marked conduit for an inspector, read the listing wording closely before you buy — that is a paperwork point, not a performance one.
The case for the 50-foot kit
- 50 feet covers a heater or landscape run without a mid-run junction
- 5 straight and 5 angle fittings — the most angle fittings in a short-run kit here
- Sun-resistant PVC rated for direct burial and above-ground outdoor runs
- Direct-burial rated and non-metallic, so no corrosion path
Where it thins out
- Connector plastic runs thinner than premium US-made hardware
- Minimal markings on the conduit, so check the listing against your code needs
A strong middle-distance value: The right kit when your run is too long for 25 feet but you do not need a full 100-foot roll.
skip it if your job demands marking: Verify the listing against your inspector’s requirements first, since the conduit carries minimal print.
7. Flexible PVC Non Metallic UL Liquid Tight Electrical Conduit (1 1/4″ dia x 50 ft)
Fifty feet of UL-rated flex built for the tight quarters where a rigid run simply will not fit.
The Ultra Flex PVC Pipe earns its name by getting into places a stiff conduit cannot. Its whole reason for existing is the phrase in the listing: it can be used in extremely tight quarters. The pipe is 50 feet long, PVC, and rated for direct burial and sunlight exposure, and it is light enough that climbing a ladder with a coil is workable. Owners have used it to run AV and HDMI cable through floor trusses with a 90-degree curve, and the fish tape and fish sticks passed through even while coiled, which is a strong sign the interior is smooth.
The UL rating is printed as 140 degrees F, a real number to keep in mind if your run passes near a heat source. Because the material is PVC and non-metallic, it will not corrode and will not conduct electricity, so it is a clean choice for low-voltage cabling and data pulls. The trade-off buyers run into comes with PVC by nature: it wants to keep the curve it sat in on the roll, and reviewers point out a section can stay bent even after a heat gun and reverse-bending. For a straight-ish run that settles flat, this is not a problem. For a twisty path, plan to work the pipe.
One asterisk on the label. There is a report that the conduit did not carry the expected UL markings on the pipe or the packaging. If your job requires a visibly UL-listed conduit for an inspection, verify that before you buy — that specific complaint is a paperwork catch, not a call that the product is unsafe. For general DIY routing where a code stamp is not the deciding factor, the pipe does the job and handles the bendy bits.
The tight-quarters answer: Fifty feet of light PVC flexible enough to snake through floor trusses and chase runs a rigid conduit cannot reach.
It keeps its coil curve: Plan a warm-up and a firm hand if your path has bends — this PVC does not forget the shape it shipped in.
Pick the Ultra Flex when your challenge is getting into a space at all — trusses, cabinets, a soffit, a crawl. If you need a cleaner, straighter run in the open, the thicker-jacketed kits higher up this list will suit you more.
8. (1 1/4″ dia x 50 ft) HydroMaxx® Flexible PVC Non Metallic UL Liquid Tight Electrical Conduit Kit with 2 Straight and 2 Angle Fittings Included
Quality-first flex with a two-plus-two fitting kit that stays watertight from panel to load.
HydroMaxx takes the strongest ownership scores on this list, and the reason traces back to how the kit is built. The fittings are molded from Type Nylon 6 (a tough engineering plastic) with an O-ring and a steel lock-nut, so you push the tubing onto the fitting and tighten — no threading, no disassembly. That is a big convenience on a generator or subpanel where the connection has to be watertight and stay that way. Buyers ran a 16KW GENERAC feed through it with a couple of 6 gauge and 8 gauge conductors plus a ground, and reported it fit and worked perfectly, calling it a very good combo kit with just the right parts.
The jacket is PVC and non-metallic, rated for direct burial and sunlight, and smooth on the inside. What sticks with owners using it around a house is the water tightness and critter resistance — this is a conduit for burying, and it keeps water and small animals out of a buried run. For a feed from the panel to a generator or an outbuilding, that is exactly the standard you want to hit. Slip the O-ring-sealed fitting home, tighten the lock-nut, and the joint is sealed.
The flexibility point cuts both ways here. HydroMaxx uses a stiff PVC, and owners needed a firm hand to force it into a panel and to shape a wide S-bend for a subpanel feed. One trick owners discovered: lay the coil in the sun for a few hours, and it takes shape with far less effort. Install your conduit first, then set the panel, and the stiff run becomes an advantage because it holds a clean line. If your path is a tight zigzag, soften it in the sun before you fight it.
Why owners trust it
- Nylon 6 connectors with O-ring and steel lock-nut for a sealed joint
- Strong water tightness and critter resistance for buried runs
- Direct-burial and sunlight rated PVC jacket
- Fits a full generator feed of multiple large conductors plus ground
The one trade-off to plan for
- Stiff jacket that resists S-bends and needs a firm hand at the panel
- Sun-warming a coil first helps it take shape before installation
Best for generator and outbuilding feeds: Buy this one when the joint has to seal a serious conductor bundle and stay watertight in a buried trench.
Soften it first: Give the coil some sun before you install, especially if your path has bends.
9. HydroMaxx® Flexible PVC Non Metallic UL Liquid Tight Electrical Conduit (1 1/4″ dia x 100 ft)
A full 100-foot roll in one piece for burying long runs without a coupler in the middle.
If your job crosses a yard, a driveway edge, or a long fence line, one 100-foot roll in a single continuous piece is worth far more than three spliced 25s. This HydroMaxx run is PVC and non-metallic, rated for sunlight, and flexible enough to feed around obstacles on the way to a distant load. Owners call it fairly flexible and note it works as described — a straightforward, no-surprises roll for the long runs where the fewer joints the better. The smooth interior keeps wire pulling manageable even across a full 100 feet, which is the whole reason to buy continuous.
The material will not corrode and the non-metallic construction means no conductive path back to a panel, so a buried run is a clean one. Because it is a longer roll of the same HydroMaxx PVC, it shares the stiff-jacket family trait: it holds its shape and needs persuasion to seat hard into a panel. That firmness is actually what keeps the interior bore open across a long run, so it pays you back on the pull side of the job.
One size note is worth checking before you order. A buyer who asked for 1-1/4 inch reported a roll that measured closer to 1 inch, with an outside around 1-1/4 inches and an inner around 1-1/8 inches — between the labeled sizes, and possibly just an uneven cut at the end. On a run where you need the maximum inner room for a large bundle, measure the actual bore before you commit. If your wire count is modest and the path is long, the continuous 100 feet is the value play here.
Buy it for the continuous length: One piece, 100 feet, meant for long underground runs where a coupler is the last thing you want.
Measure the bore early: Verify the inner diameter against your conductor bundle if you are packing it full.
Go with this HydroMaxx roll when distance and a smooth run top your list. If you want the watertight fittings included and a shorter run, the 50-foot kit above is a simpler buy.
Understanding the Specs
Trade Size vs Actual Outside Diameter
This is the single most confusing thing for a first-time buyer. The 1-1/4 inch figure on the box is the electrical trade size, not the measurement you get when you wrap a tape around the pipe. The real outside diameter on these flexible PVC runs sits around 1.63 to 1.65 inches, and the inner diameter lands near 1.38 inches on the tightest kits. When you are drilling a knockout or setting a hole saw, use the outside diameter. When you are checking whether your wire bundle fits, use the inner diameter. Get those two straight and the job goes smoothly; mix them up and you are drilling the wrong-sized hole.
Nominal Wall Thickness
Wall thickness is the number that decides how tough the conduit is against crushing, soil weight, and foot traffic. On this list it ranges from around 0.12 inches on the lighter kits up to 7.1 mm on the heavy Geowaky jacket, with the Sealproof and AISIMEE runs at 0.125 inches. A thicker wall holds its shape underground and takes more abuse before it flattens. A thinner wall bends with less effort, which helps when you are routing around a tight corner in an attic or under a sink. Pick thick for buried runs you will never dig up, and thin for tricky paths that need to bend.
FAQ
Is 1-1/4 inch conduit the same as 1.25 inches across?
Can I use 1-1/4 inch liquid-tight conduit for direct burial?
How many wires fit in a 1-1/4 inch conduit?
Why is pulling wire through flexible conduit so hard?
Is non-metallic conduit safer than metal flex?
How do I attach the connectors without tools?
What length should I buy for a generator or EV charger run?
Does the PVC conduit hold its shape after unrolling?
Will this conduit hold up to sun and weather outdoors?
Do I need UL Listed conduit for my job?
Final Thoughts: The Verdict
For most people shopping the 1 1/4 inch conduit, the winner is the Sealproof Type B100-foot roll because it covers long outdoor and buried runs in one piece, with a solid PVC wall that resists water, oil, and corrosion. If you want the fittings included for a shorter run, grab the AISIMEE 25FT Kit. And for a generator or outbuilding feed where the joint must seal tight, the HydroMaxx 50 ft Kit is the one to reach for.
How We Picked
We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.
Sources & Methodology
Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of September 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.
As an Amazon Associate, KitchPrep earns from qualifying purchases. This does not affect which products we feature.
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