Effective for use in aerated digesters, package wastewater plants or
applications requiring mixing such as raw chambers or return sludge
channels. Coarse bubble diffusers require less maintenance than fine
bubble diffusers but are not as efficient in transferring oxygen as Fine
These units are made with EPDM membranes with perforations designed to
keep the bubbles from reforming into one larger bubble. Diffuser base
and retaining ring are manufactured from durable ABS.
The unit is provided with an integral check valve to eliminate the
intrusion of water and solids into the piping under normal on/off
Units are suitable for mounting on either the top or bottom of the air
Each unit is 5 inches in diameter.