DANCO Easy-to-Install, Snap-In-Style Shower Drain, Polished Stainless Steel, 3-1/4-Inch, 1-Set (89201) With a 4-Inch diameter, this fits 3-inch pipes of cast iron, plastic and clay tile. Has a snap-in installation technique for simplicity. To help ease your installation, the prongs can be asjusted. This is very easy to install, making it a quick and easy process. This product is onstructed of a very luxurious polished stainless steel. 4 in. diameter and fits a 3 in. pipe Fits: cast iron, plastic and clay tile pipes Snap-in-style Prongs can be adjusted to fit drain Quick and easy installation Polished stainless steel