White PVC Spring Check Valves, Slip Ends (SLIP) Size:2" SLIP 5" for easy connection of

5" for easy connection of the MTP discharge kit connection

boosts alkalinity and adds eletrolytes

Helps optimize water quality

or before adding new fishes

and organics (leaves

White PVC Spring Check Valves, Slip Ends (SLIP) Size:2" SLIP 5" for easy connection ofCheck 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