FANOVO 2 inch Clear Union Check Valve Built in Spring, Double Slip Socket Full Port 2'' Silent Non Return Backflow Preventer, Sch 80 One Way Sump Pump

FANOVO 2 inch Clear Union Check Valve Built in Spring, Double Slip Socket Full Port 2'' Silent Non Return Backflow Preventer, Sch 80 One Way Sump Pump Combination Back-flow Valve, for Sprink

This product would be ideal for applications requiring a silent non-return backflow preventer in a compact design.