Self Weighted Double Membrane Diffuser Assembly

No need to weigh down these diffusers!  The powder coated metal base creates a self weighted base that sinks without weights.  Features include: Strain relief clamp to secure tubing onto base Schedule 80 check valve prevents backflow of water up air line Inlet air fittings (included) accept 3/8", 1/2" or 5/8" tubing   Item # Description Recommended Airflow (CFM) QS1 Single Diffuser 0.8 to 3 QS2 Dual Diffuser 1.6 to 6   Contact Us if you would like assistance with sizing an aeration system.