Matala offers a 9" membrane air diffuser assembly that features a hollow base that can be filled with sand or gravel. This eliminates the need for bricks and straps to get the diffuser to sink. Available in both a single head or dual head assemblies.
The Matala EPDM disc diffuser is designed for industry heavy duty installation. Precision perforated I-shaped slits open when airflow is present and close when airflow is sopped, which increases the slits resistance to tearing and stay cleaner longer.
Recommended for use with a 25 lpm - 80 lpm air pump.