Watts 0437701 774 Series Lead Free 2-1/2 in. Flanged Joint Stainless Steel Double Check Valve Assembly Backflow Preventer with OSY Shutoff, Short Lay Length
Watts 0437709 774 Series Lead Free 3 in. Flanged Joint Stainless Steel Double Check Valve Assembly Backflow Preventer with OSY Shutoff, Short Lay Length
Watts 0438009 774 Series Lead Free 6 in. Flanged Joint Stainless Steel Double Check Valve Assembly Backflow Preventer with OSY Shutoff, Short Lay Length
Watts 0438025 774 Series Lead Free 8 in. Flanged Joint Stainless Steel Double Check Valve Assembly Backflow Preventer with OSY Shutoff, Short Lay Length