Sioux Chief 821 series, USA-made drain for showers using a shower flashing/liner (such as Oatey PVC liner or similar). Solid stainless steel square screw-on strainer and rim - in SATIN finish. Adjustable height top strainer easily accommodates various mortar bed thicknesses. Connects to a standard 2" PVC drain pipe or inside a 3" Sch 40 PVC pipe. Optional test plug (part# 821-TP, not required, used only if testing with water for leaks) is sold separately.