Photo 1 of FANOVO 3/4 inch Clear Spring PVC Check Valve, Double Union Slip Socket Full Port Schedule 80 One Way Silent Sump Pump Backflow Preventer Combination Non Return Valve Sprinkler, for Backflow Prevention

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Photo 1 of FANOVO 3/4 inch Clear Spring PVC Check Valve, Double Union Slip Socket Full Port Schedule 80 One Way Silent Sump Pump Backflow Preventer Combination Non Return Valve Sprinkler, for Backflow PreventionPhoto 2 of FANOVO 3/4 inch Clear Spring PVC Check Valve, Double Union Slip Socket Full Port Schedule 80 One Way Silent Sump Pump Backflow Preventer Combination Non Return Valve Sprinkler, for Backflow Prevention