OATEY 43509 3 in. PVC Closet Flange with Plastic Ring without Test Cap

Yes. The 43509 is a straight, flush-mount flange, so the ring lands on top of the finished floor rather than standing proud of it. That is the height a standard wax ring is designed around. Set your finished flooring first, then set the flange on it so the ring rests on the surface the toilet sits on.

Yes, if you want to pressure or water test the line. The 43509 ships without a test cap. Oatey builds the same 3 in. PVC flange in a version that includes a knock-out test cap, so if you are roughing in new construction and need to hold water on the stack, order that one instead. For a replacement on an existing, already-tested drain the no-cap version is what you want.

Yes. The 43509 uses a plastic molded ring with full bolt slots, and there is a patented bolt slot shelf that keeps the closet bolts from falling through while you set them. Slide the bolts around the slot to square them to the wall, then drop the toilet. Four screw holes anchor the ring to the floor.

The 43509 has a plastic molded ring, which is one piece with the PVC body, so there is nothing to corrode and no galvanic issue in a wet slab or a bathroom that gets mopped hard. A stainless or cast ring is what people reach for when the floor is uneven and the ring takes a lot of bolt tension or gets repeated toilet swaps, as in high-turnover commercial restrooms. For apartments, single-family, and normal replacement work, the plastic ring version is the standard choice.

For any opening where the drain is 3 in. Sch. 40 PVC and the flange sits on the finished floor, the Oatey 43509 standardizes well. Same white PVC body, same four-hole bolt pattern, same solvent weld hub every time, and it takes the ordinary closet bolts and wax rings your crews already stock. Openings that will not work with it are 4 in. drains and any place where the drain sits below the floor and needs an offset or extension ring.

Plan on PVC primer and solvent cement for the 3 in. Sch. 40 joint, four floor fasteners suited to your substrate (wood screws for subfloor, concrete anchors for slab), a pair of closet bolts, and a wax ring or waxless seal. The flange itself is a lightweight part at about 0.58 lb, so a single installer handles it easily.

The manufacturer part number is 43509, UPC 038753435091. It is Oatey's Fast Set toilet flange in 3 in. PVC with a plastic molded ring.