EDI FlexAir tube diffusers are strong and durable. The diffuser inlet is molded from high rigidity ABS permanently bonded to a PVC membrane support tube to create an integral diffuser body. Mounting connection is 3/4" NPT(M) 304 SS. Standard membrane is field proven EPDM elastomer, which is well suited to most municipal and industrial applications.
The FlexAir diffuser membrane’s engineered air release orifices allows full utilization of the membrane surface, even at low airflow operation. This results in improved oxygen transfer efficiency and maximum operating flexibility. All EDI tube diffusers feature an integral "triple" check valve to prevent backflow and clogging due to solids. Tests of EDI membrane diffusers have shown increases in efficiency from 15 to 50% over competitors' units.