Body Cast Iron 2 Cover Cast Iron 3 Lever Frame* Stainless Steel 4 Seat* Stainless Steel 5 Float* Stainless Steel 6 Gasket* Non-Asbestos 7 Cover Bolt Alloy Steel 10 Float Arm* Stainless Steel ,Orifice Button* Buna-N,Pivot Pin* Stainless Steel ,size range 1/2" to 6"