Approvals - Dual Check Valves

Select a Series

20

Bronze Dual Check Backflow Preventers
Size: 1/2 to 1 1/4 in. (15 to 32mm)

L20

Bronze In-Line Testable/Serviceable Dual Check Backflow Preventers
Size: 3/4 and 1 in. (20 to 25mm)

20S

Bronze Residential Fire Sprinkler System Dual Check Backflow Preventers
Size: 1 and 1 1/4 in. (25 to 32mm)

Cu20

Copper-Bodied Dual Check Backflow Preventers
Size: 1/2 and 1 in. (15 to 25mm)