- Membrane air diffuser assembly that features a hollow base that can be filled with sand or gravel
- Eliminates the need for bricks and straps to get the diffuser to sink!
- Available in single, dual or quad head assemblies
- Quad head handles airflow from 3.2 - 12 CFM
- 3/4" female threaded outlet located in the base of each diffuser, 3/8" and 1/2" barbed tubing adapters included