• Non-Stick Coating Prevents Debris from Sticking
• Virtually Maintenance Free Membrane Sticks
• Check Valve Prevents Back Pressure to Compressor

Airmax ProAir 4 Weighted Diffuser Plates are designed for maximum oxygen circulation in your pond. The ProAir 4 diffusers are weighted to support the diffusers in muck. The membrane sticks have the same effect as air stones but are virtually maintenance free. Each plate comes with a check valve to prevent back pressure to your compressor

PLATE DIMENSIONS:  19"L x 19"W x 5"H

5 Year Warranty