Product Information Material: 316 Stainless Steel Seat: Virgin PTFE Select a Product Part NumberStyleSize BV2CV-250CC-BCCDouble Acting2-1/2" BV2CV-300CC-BCCDouble Acting3" BV2CV-150CC-BBCSpring Return1-1/2" BV2CV-400CC-BBCSpring Return4" BV2CV-200CC-BCCDouble Acting2" BV2CV-250CC-BBCSpring Return2-1/2" BV2CV-075CC-BCCDouble Acting3/4" BV2CV-200CC-BBCSpring Return2" BV2CV-300CC-BBCSpring Return3" BV2CV-050CC-BCCDouble Acting1/2" BV2CV-050CC-BBCSpring Return1/2" BV2CV-100CC-BCCDouble Acting1" BV2CV-075CC-BBCSpring Return3/4" BV2CV-100CC-BBCSpring Return1" BV2CV-150CC-BCCDouble Acting1-1/2" BV2CV-400CC-BCCDouble Acting4"