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4-inch EBD4 and EBD4A Bottom Drain Features:
- The popular EBD bottom drain has been redesigned for 2011, and is now available with or without air diffuser
- 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
- Heavy duty, roto-molded design offers superior strength
- 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
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