White PVC Swing Check Valves, Slip Ends (SLIP) Size:3" Slip disassembled for convenient shipping

disassembled for convenient shipping

To protect fish and invertebrates during shipping

000 gallons CC026-24 24 packets 24

It is even safe to use as a prophylactic (preventative)

1" Thick Top

White PVC Swing Check Valves, Slip Ends (SLIP) Size:3" Slip disassembled for convenient shippingCheck 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