OATEY 42215 2 in. 151 Cast Iron Drain Top and ABS Bottom with 2 in. Solvent Weld Connection

Yes. The 42215 has an ABS bottom with a 2 inch solvent weld connection, so it cements directly to 2 inch ABS DWV pipe with ABS solvent cement. It is not threaded and it is not a no-calk (caulk) body, so there is no gasket or lead joint involved. If your rough-in stub is PVC rather than ABS, this is the wrong bottom half; Oatey builds the same 151 drain top with plastic and cast iron bottoms in threaded and no-calk connections as well.

That is exactly what it is for. The 42215 is a two part drain built for built-up showers that use a hot mop membrane: the ABS bottom half is solvent welded to the 2 inch waste line and set first, the membrane is dressed over it, and the cast iron top half clamps down and sets the finished floor height. If you are building a shower over a preformed PVC or CPE liner with no mop, you still want a two part clamping drain, but for a bonded hot mop pan this is the intended assembly.

The crown ring set is included. The 42215 ships with a 3-1/4 inch crown ring set, so the ring and strainer that finish the drain out are in the box. What is not included is the solvent cement for the ABS joint and whatever membrane or mop material the pan calls for.

The 151 body is a low profile design, which is the reason to reach for it when the space between the finished shower floor and the structure below is tight. Cast iron top with an ABS bottom keeps the stack height down while still giving you a clamping two part drain. Confirm your own pan buildup and the depth of your 2 inch trap arm, since the drain being low profile does not shorten the trap below it.

Cast iron is the top to specify where the drain takes traffic, carts, or abuse, and where a facility standardizes on metal at the floor. The 42215 pairs a cast iron drain top with an ABS bottom, so you get the metal wearing surface at the finished floor and a plastic joint you can solvent weld to the waste line. Oatey builds the same 151 drain in all plastic if you want the lighter, lower cost body and the drain is not seeing heavy service.

Order Oatey 42215. That is the 151 series drain with the cast iron top, ABS bottom, and 2 inch solvent weld outlet. The 42215 covers a single configuration, so there is no finish or size choice to make on the order, but you do need to be sure your rough-in is 2 inch and ABS before it ships.