3" Coupling Check Valve Assembly - EP9700 Koi & Goldfish Treatments This product contains 3

This product contains 3

This basic 3" bottom drain allows dirt and debris to be removed from the pond bottom without the hassle of vacuuming or drain-downs

1 Green (coarse) Matala Filter Pad

EBD4A incorporates an air diffuser into the dome lid - incoming air is delivered up through the center stand pipe allowing air tubing to be installed under liner

3" Coupling Check Valve Assembly - EP9700 Koi & Goldfish Treatments This product contains 3These 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