3" Bottom Drain Kit (EBD4 drain) incl 3" Bulkhead, Valve, Fittings PVC Unions (SOCxSOC) This is a schedule 40

This is a schedule 40 PVC Threaded Plug used to plug flow through female threaded PVC fittings

1-1/2" bulkhead)

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

Sludge Remover Pellets are great for spot treating around docks and beaches

A bottom drain and an air diffuser built into one unit

3" Bottom Drain Kit (EBD4 drain) incl 3" Bulkhead, Valve, Fittings PVC Unions (SOCxSOC) This is a schedule 40This terrific system lets you have both the benefits of a skimmer and bottom drain! The bottom drain is installed with flexible PVC pipe carrying the water under the liner, through a bulkhead and into the skimmer where a valve controls what percentage of the water goes through the skimmer faceplate (surface water) versus through the bottom drain. Kit includes #EBD4 Bottom Drain, 3" Bulkhead fitting, 3" valve and other fittings. Kit does not include 3"