No Cabinet (NC): This is desired when installing the compressor system in your own structure

saving you time and money

and your tastes

the algae will often die off quickly

Airmax Pro-Air 2 Stick Diffuser Surface Aerators No Cabinet (NC): This isAirmax ProAir Weighted Diffuser are designed for maximum oxygen circulation in your pond. The ProAir2 & ProAir4 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. ProAir2 Weighted Diffusers are found in the Airmax Shallow Water Series Aeration Systems and Airmax Shallow Water