White PVC Swing Check Valves, Slip Ends (SLIP) Size:4" Slip irrigation ponds

irrigation ponds

Pellet Size: Medium

See links below for optional drawer and trundle units

For ponds & water gardens with biological filtration

Some are parts of the valve assembly: Valve Handle

White PVC Swing Check Valves, Slip Ends (SLIP) Size:4" Slip irrigation pondsCheck 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