White PVC Swing Check Valves, Slip Ends (SLIP) Size:4" Slip weight-bearing bridges are actually functional

weight-bearing bridges are actually functional

24 240gph 4

the Ultima II patented cyclonic backwash separates the waste and flushes it out the waste line for easy cleaning

8000 grit (#R72080)

The air diffusers allow you to easily add much-needed air circulation to ponds that increase oxygenation in hot weather

White PVC Swing Check Valves, Slip Ends (SLIP) Size:4" Slip weight-bearing bridges are actually functionalCheck 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