2" Coupling Check Valve Assembly, TH150, TH250, TH400, TH750 Plug (MPT) This is the perfect level

This is the perfect level for handling Koi

which is 3 times stronger than glass-bonded silca air stones

Ship Via AA300 30

The pump is UL listed for safety and has a 3 year warranty

lighting transformers and other equipment around the pond or yard

2" Coupling Check Valve Assembly, TH150, TH250, TH400, TH750 Plug (MPT) This is the perfect levelThese units are designed to easily connect a pump that is in a skimmer or vault to a flexible or rigid PVC waterline. The check valve is important for stopping a backflow of water in the event of a power loss. Each unit has a heavy duty PVC Check Valve with a MNPT fitting that screws into the pump on one end, and a rubber coupling to connect to the water line on the other end. The table below shows which Check Valve Assemblies are compatible with