OATEY 710-1 Dearborn® 1-1/2 in. P-Trap w/ Cleanout - 17 Ga.

It does. The 710-1 has a cleanout at the bottom of the trap bend, so a maintenance tech can drop a bucket under it, pull the plug and clear hair or debris without breaking the slip joints or pulling the whole trap off the wall. On a lavatory that clogs regularly, that turns a 20 minute job into a five minute one and avoids re-seating washers every time.

17 gauge is the heavier of the two common brass wall tubes, and it is what most commercial and institutional specs call for on public lavatories. The 710-1 is 17 gauge brass with a chrome plated finish, so the wall wall tube resists denting from kicks, carts and repeated snaking better than light 20 gauge tubular. For a residential vanity behind a cabinet door, lighter tubular is usually accepted; for an exposed ADA lavatory or a school restroom, specify the 17 gauge.

No. The 710-1 ships with a standard flange, so the escutcheon that hides the rough opening around the wall tube is part of the assembly. The chrome plating on the flange matches the trap, which matters on an exposed lavatory where the trap is visible.

No. This trap is built for a wall-connected sink drain, with a horizontal 8-1/8 inch wall tube and flange that go into a wall stub-out. If your waste line comes up through the floor, you need a floor-outlet P-trap instead, sometimes called an S-trap or a floor connection trap, not this wall pattern.

Blue rubber washers, which are what Dearborn specifies for brass-to-brass slip joints. They compress against the chrome plated brass tube and give a better seal than a nylon washer, which is intended for plastic tubular. The nuts are die cast, so hand-tighten and then snug lightly with slip joint pliers, over-torquing die cast nuts is how they crack.

Each 710-1 trap runs about 1.3 lb, which is consistent with 17 gauge brass rather than light tubular. Useful if you are palletizing a restroom retrofit package across multiple lavatories.