4" Heavy duty bottom drain with air diffuser

4″ EBD4A Bottom Drain Features:

• Heavy duty, roto-molded design offers superior strength
• Welded FPT threaded inlet eliminates the need for rubber coupling
• Threaded center stand pipe securely attaches dome lid to base
• Sixteen stainless screws securely attach liner ring to base with water tight seal
• For use with 4″ schedule 40 PVC fittings and pipe, use 4″ male adapter (MA40) to connect to 4″ pipe, use reducing male adapter (RMA4030) to connect to 3″ pipe
• 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
• EBD4A tubing adapter is 1/2″, recommended air flow through diffuser is .5  -1.5 cfm