3" Bottom Drain with Built In Diffuser Air Diffusers A 40 pound bucket is

A 40 pound bucket is available for larger pond treatments

Bio Balls are much easier on them

but generally 2-3oz per gallon of spray mix is adequate

5" long on one end

18 watt replacement sleeve for EPU18N

3" Bottom Drain with Built In Diffuser Air Diffusers A 40 pound bucket isA bottom drain and an air diffuser built into one unit! The circulation created by the air diffuser will increase the amount of debris removed by the bottom drain and will increase oxygen levels in the pond. Bottom drain base has six stainless screws and two rubber gaskets for a positive seal when penetrating liner! Connects to 3" PVC pipe and fittings. Air diffuser is set up for 1 2" or 5 8" tubing, recommended air flow of 1 2 to 2 CFM.