The water seal is what keeps the smell out · review
A flexible expandable sink trap adjustable from 13.78 to 35.43 inches, with a 1-1/4 to 1-1/2 adapter.
A drain that does not line up.
That is a real and common situation: a new vanity whose sink sits four inches off the old center line; a pedestal sink over a stub meant for a cabinet; an RV where nothing aligns with anything.
Thirteen point seven eight inches to thirty-five point four three. The alternative is opening a wall.
For $13.99 and ten minutes, that is a genuine solution, and this is the only fitting on this shelf that offers it.
Top nut 1-1/2 in (45 mm). Bottom 1.2 in (30 mm). Adapter 1-1/4 in (39 mm).
That is enough to check against your own pipework before ordering, which on a parts shelf is the whole question.
The title says P Trap. The model reference reads “S-Trap Gray 09”. Bullet one says “You can DIY sink drain S-trap pipe P-Trap”.
Those are not interchangeable words.
A P-trap curves down, back up, then runs horizontally to the wall. The water in the bend stays there.
An S-trap curves down, up, then down again into the floor — and a full sink draining fast can pull that water out of the bend behind it by siphon action. An empty trap is an open pipe, and an open pipe lets sewer gas into the room.
Modern plumbing codes require a vented P-trap and do not accept an S-trap.
Because this fitting is flexible it can be bent into either shape, which puts the decision on whoever installs it. Fit it as a P: down, up, and horizontally out to the wall. Do not take it down into the floor.
The concertina wall that makes it adjustable is a series of internal ridges, and every ridge catches hair, soap and toothpaste.
A smooth trap passes that through. A ribbed one accumulates it until the sink drains slowly and smells, and the only remedy is taking it apart over a bucket.
The EcoArtHeating on this shelf makes exactly the opposite claim — smooth interior won’t cause buildup or bad odors — and it is a fair contrast rather than a marketing one.
If the pipework lines up, buy a rigid trap. The Oatey here is $9.00 and the EcoArtHeating is $21.50 with a code claim and an eighteen-month warranty.
If it does not line up and cannot be moved, this is the fitting, and it will need cleaning out more often than a rigid one.
No code compliance claim. No warranty. No seal depth. On a fitting whose own reference contradicts its title, those absences are worth weighing.
You may receive a white or gray adapter, but both can be used normally.
Available at around $13.99 on Amazon.com when we checked on October 29, 2026, for delivery to a US address.
Stock and prices on Amazon.com move without notice; the button above opens the live listing.
Prices quoted in this text were read on October 29, 2026. The live price is at the top of the page.
| Inlet size | A 1-1/2 in (45 mm) top nut inner diameter, with a 1-1/4 in nut adapter of 1.5 in (39 mm) inner diameter supplied — so it serves both common sink drains. THE MAKER'S OWN REFERENCE READS « S-Trap Gray 09 » while the first bullet refers to BOTH AN S-TRAP AND A P-TRAP; see the FAQ, because the two discharge in different directions. The adapter color, white or gray, is SUPPLIED AT RANDOM. |
|---|---|
| Outlet size | 1.2 in (30 mm) bottom inner diameter. |
| Water seal depth | NOT PUBLISHED BY THE MAKER — and on an ACCORDION trap this is the figure that matters most, because the seal depth changes with how the concertina is stretched. |
| Body type | An ACCORDION design — the only flexible trap on this shelf — in premium plastic with silicone rubber tips, stated for kitchen sinks, bathrooms, spa baths, vanities, pedestal sinks and RVs. NO CODE COMPLIANCE IS CLAIMED BY THE MAKER, and a flexible accordion trap is precisely what many US codes refuse. |
| Space needed under the sink | 13.78 in (350 mm) TO 35.43 IN (900 MM) — the only adjustable length on this shelf, and a span no rigid trap here can cover. The listed 12.4 × 2.17 × 0.04 in (315 × 55 × 1 mm) is a carton figure and not a clearance. |
| Material | Premium plastic with silicone rubber tips. No weight and no warranty are published. |
| Dismantles without tools | NO FASTENERS ARE REQUIRED, per the maker — the only trap on this shelf that says so outright. |
| Amazon reference | B0DJ2NN3P1 |
| EAN | 0762716363595 |
The shape, and whether it can empty itself. A P-trap curves down, back up, and then runs horizontally to the wall — so the water sitting in the bend is held there. An S-trap curves down, up, and then down again into the floor, which means a full sink draining fast can pull the water out of the bend behind it by siphon action. An empty trap is an open pipe, and an open pipe lets sewer gas into the room. That is why modern plumbing codes require a P-trap with a vent and do not accept an S-trap. This listing is titled as a P-trap, its model reference reads "S-Trap Gray 09", and its first bullet says "You can DIY sink drain S-trap pipe P-Trap" — all three at once. Since the fitting is flexible it can be bent into either shape, which puts the responsibility on whoever installs it. Fit it as a P: down, up, and horizontally out to the wall.
Because the thing that makes them flexible is the thing that blocks them. The concertina wall is a series of internal ridges, and every ridge catches hair, soap scum and toothpaste. A smooth-walled trap passes that material through; a corrugated one accumulates it until the sink drains slowly and smells, and the only cure is taking it apart. The EcoArtHeating on this shelf makes a point of the opposite — "smooth interior won’t cause buildup or bad odors" — and that is a direct and fair contrast. If the pipework lines up at all, a rigid trap is the better fitting.
When the drain stub in the wall is in the wrong place and moving it means opening the wall. That is a genuine and common situation — a replacement vanity whose sink sits four inches off the old center line, a pedestal sink over a stub meant for a cabinet, an RV where nothing lines up with anything. Thirteen to thirty-five inches of adjustment solves it in ten minutes for $13.99, where the alternative is a plasterer. Fit it, and then accept that it will need cleaning out more often than a rigid trap would — and that if the installation is ever inspected, this listing offers no compliance claim to show.
Same category, nearby prices, between bathroom fittings. What remains is the specifications every one publishes — half empty, a column is no use.
| Model | Price | Inlet size | Outlet size | Water seal depth | Body type |
|---|---|---|---|---|---|
| TGEOND flexible expandable P-trap | $14 | A 1-1/2 in (45 mm) top nut inner diameter, with a 1-1/4 in nut adapter of 1.5 in (39 mm) inner diameter supplied — so it serves both common sink drains. THE MAKER'S OWN REFERENCE READS « S-Trap Gray 09 » while the first bullet refers to BOTH AN S-TRAP AND A P-TRAP; see the FAQ, because the two discharge in different directions. The adapter color, white or gray, is SUPPLIED AT RANDOM. | 1.2 in (30 mm) bottom inner diameter. | NOT PUBLISHED BY THE MAKER — and on an ACCORDION trap this is the figure that matters most, because the seal depth changes with how the concertina is stretched. | An ACCORDION design — the only flexible trap on this shelf — in premium plastic with silicone rubber tips, stated for kitchen sinks, bathrooms, spa baths, vanities, pedestal sinks and RVs. NO CODE COMPLIANCE IS CLAIMED BY THE MAKER, and a flexible accordion trap is precisely what many US codes refuse. |
| Oatey Dearborn 1-1/2 in P-trap | $9 | 1-1/2 in, on a REVERSIBLE J-BEND — the only reversible bend on this shelf, which is what lets one part serve a wall outlet or a floor outlet. 5.98 × 2.99 × 5.98 in (152 × 76 × 152 mm). | 1-1/2 in, through a threaded adapter. THE PARTS LIST IS NOT Itemized, where PlumbCraft on this shelf itemizes fifteen pieces — so what is in the bag is not established beyond the bullets. | NOT PUBLISHED BY THE MAKER — and no trap on this shelf publishes it, which is the one figure that decides whether the seal survives a dry week. | A P-trap with a reversible J-bend. No code compliance is claimed on this listing. |
| ecoartheating 1-1/4 in chrome bottle trap | $22 | 1-1/4 in slip, stated suitable for ALL STANDARD Pop-Up DrainS and for undermount, vessel and pedestal sinks, WITH OR WITHOUT OVERFLOW. | 1-5/8 in joint. | NOT PUBLISHED BY THE MAKER. What it does publish is TRIPLE BRASS SEALING RINGS embedded inside, and that THE EXTENSION PIPE HEIGHT ADJUSTS WITHOUT LOSING THE SEAL — the only trap here that claims the adjustment does not cost you the water seal. | A BOTTLE TRAP — the only one on this shelf, and the only fitting here meant to be seen. STATED TO MEET PLUMBING CODE REQUIREMENTS IN USA/CAN, which is THE ONLY CODE CLAIM ON THIS SHELF. The interior is smooth, stated not to cause buildup or bad odors. |
| Plumb Craft 15-piece sink drain repair kit | $27 | 1-1/4 in throughout — and this is a 15-PIECE KIT, EVERY ONE Itemized BY THE MAKER, which no other listing on this shelf does: one 1-1/4 × 7 in wall tube, one 1-1/4 J-bend, one 1-1/4 female J-bend, one 1-1/4 × 12 in extension, one 1-1/4 × 5 in tube, four 1-1/4 washers, one 1-1/2 × 1-1/4 washer in polyethylene, four 1-1/4 nuts and one 1-1/2 nut. | 1-1/4 in, with a 1-1/2 × 1-1/4 washer to step up where needed. WALL OR FLOOR DRAIN — BOTH COVERED, which is what the two J-bends are for. | NOT PUBLISHED BY THE MAKER. | A P-trap kit, with a female J-bend for a floor outlet. No code compliance is claimed on this listing. |
This model is listed on Amazon.com, at ≈ $14 at the last reading. Listed is not the same as in stock: availability changes daily, and the buy box shows the live price.
Details checked on October 29, 2026.
A drain that does not line up and cannot be moved — and nothing else
Amazon reports what buyers took in the month before this page was last checked: at least 200.
The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.
Specifications: the manufacturer sheet for bathroom fittings and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
Bottle trap and drain kit, chrome · 1 1/4 in slip inlet, 1 5/8 in joint out · US and Canada plumbing code
A chrome 1-1/4 in bottle trap kit with triple brass seals, an adjustable height and an 18-month warranty.
Best for: A vessel or pedestal sink where the trap is visible, and the pipework is close to lining up
≈ $22
1-1/2 in tubular P-trap with a threaded PVC adapter and a reversible J-bend, bagged with a True Blue premium washer; the first bullet states it is made of PVC for easier cutting and glue applications while the fifth states it is available in white or black polypropylene, and the description states the traps are manufactured with a PVC or ABS plastic adapter and True Blue premium washers for superior sealing in tubular drain applications; super nuts with full sized wings and longer threads, and a marvel connector included
A 1-1/2 in tubular P-trap with a reversible J-bend, hand-tightenable nuts and a premium washer.
Best for: A 1-1/2 inch drain that needs a plain, well-made P-trap and nothing clever
≈ $9
15-piece universal bathroom sink drain repair kit with replacement pipes and fittings to suit most sinks with drainage connecting to the wall or to the floor, for repairs to J-bend and P-trap sink pipes with multiple installation options; every piece made of durable thermoplastic including polyethylene washers, supplied with a detailed instruction sheet; the contents are one 1-1/4 x 7 wall tube, one 1-1/4 J-bend, four 1-1/4 washers, four 1-1/4 nuts, one 1-1/2 x 1-1/4 washer, one 1-1/2 nut, one 1-1/4 x 12 extension tube, one 1-1/4 x 5 tube and one 1-1/4 female J-bend
A 15-piece bathroom sink drain repair kit covering both wall and floor drainage, with every part itemized.
Best for: A repair where you do not yet know what you will find — which is most of them
≈ $27
