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9" Disc Diffuser: Can be adapted
to fit a Tetra bottom drain (with some modifications), Aqua Art
Retro-Drains or the 4" spin drain. FlexAir disc diffuser
bodies are made of high-strength polypropylene with 3/4"
MNPT connections. Diffuser has a minimum of 6,600 engineered
air release orifices. Special design of the EPDM membrane with
its engineered thickness taper, results in full utilization of
the membrane surface, even at low airflow operations. The disc
diffuser has an integral "triple" check valve to prevent
fluid backflow. Normal airflow range is 0-5 cfm. Resistance is
about 10" H20 when clean. Disc diffusers have fine bubble
EPDM membranes. Medium, coarse and coarse/fine combination membranes
are also available. |