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

3" Coupling Check Valve Assembly - EP9700 Koi & Goldfish TreatmentsThese 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

These units are designed to easily connect a pump that is in a skimmer or vault to a flexible or rigid PVC waterline

This Large AquaFalls pad is shaped like a trapezoid

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

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

5" 35"x21" UPS

0" 42"x25" Motor Freight

then lifts and spins it

1 Green (coarse) Matala Filter Pad

This product contains 3

Polyethylene underlay keep diffusers from settling into the muck and prevents sediment erosion during operation

Small Boulder

which eliminates osmotic stress (Koi have to pump water out of themselves constantly when the amount of salt in the water is less than the amount of salt in their blood)