Description

This 4 Inch Ames Deringer(Tm) 30 Double Check Detector Type II Backflow Preventer Assembly is Designed to Prevent Non-Health Hazard Pollutants From Entering The Potable Water Supply System Caused by Backflow Due to Backpressure And/Or Backsiphonage Conditions. Deringer 30 Features Integral Eccentric-Seal(Tm) Butterfly