Our solid brass, shower drain is designed for use in all HYDROBLOK Classic Center Drain shower pans. The HYDROBLOK Stainless Steel Drain Cover and Tray with Plastic Riser is a perfect fit for the Brass Drain Kit. This HYDROBLOK Brass Drain Kit is included with each HYDROBLOK Classic Drain Shower Pan and is available separately from your HYDROBLOK dealer. UL and CSA Approved. Includes: Solid Brass Caulking Nut with tightening insert key – Rubber Caulking Gasket – Solid Brass Drain Body – Rubber Gasket – Fiber Gasket – Solid Brass Locking Nut