Set of 2 Air Pump Diaphrams for all PEC solar aeration pumps.

Draft tube technology is no secret. By floating a bottom or shore anchored expandable pipe and placing air bubbles 0.5-1.0 ft inside it, you can aerate at any pond depth. In this manner you only need an air pump capable of 0.8 psi pressure no matter how deep your water is. All other systems require 1 Psi per 2.31ft of water depth. Our EKBS-10 pumps over 2500 GPD with our draft tube at any depth. Versus our EKBS-10 at 10 ft depth which only pumps 250 GPD. This holds true with any air pump.

We build it for you, any length, for any pond depth.



Model *Gallons/day *Air Flow CFM

EKBS-10 A , 4320 , 0.5
EKBS-15 , 7200 , 0.8
EKBS-20 , 11520 , 1.2


*calculated values based on STP and diffuser depth of 0.5 ft inside draft tube.

Draft tubes include 20 ft of airline, float buoy, and 20 ft of line suitable for anchor (anchor not provided).