White PVC Spring Check Valves, Female Threaded Ends (FPT) Size:1" FPT Ammonia Remover binds ammonia and

Ammonia Remover binds ammonia and converts it to nontoxic ammonium

Includes mesh bag for easy application

14lb BLR25C 758183425546 Color Rich Food

The self-cleaning EPDM rubber membrane expands to release debris for clog-resistant operation and maximum dissolved oxygen output

White PVC Spring Check Valves, Female Threaded Ends (FPT) Size:1" FPT Ammonia Remover binds ammonia andCheck 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