White PVC Swing Check Valves, Female Threaded Ends (FPT) Size:3/4" FPT and cannot be overdosed

and cannot be overdosed

000 gallons (Container treats 96

2 Year Warranty

turn it off for at least 48 hours after application

White PVC Swing Check Valves, Female Threaded Ends (FPT) Size:3/4" FPT and cannot be overdosedCheck valves are essential when using a waterfall filter in conjunction with a pond skimmer. The check valve will prevent water in the filter from back flowing into the skimmer when the pump is switched off and keep water in bogs when the pump is turned off and other purposes. Check valves are also essential when an external pump is being used. The check valve prevents the water from draining back into the pond or reservoir, keeping the external pump