Product Information Material: 316L Stainless Steel Seat: EPDM Select a Product Part NumberSize B5107E800CC-A8" B5101E100CC-A1" B5101E150CC-A1-1/2" B5101E200CC-A2" B5101E300CC-A3" B5101E600CC-A6" B5101E250CC-A2-1/2" B5101E400CC-A4"