* Infuse Oxygen Into Your Pond * Aerate Ponds Up To 16,000 Gallons * Energy Efficient Design For 24−7 Use Airmax® KoiAir™ Aeration Kits are the ideal choice for aerating medium and large water gardens and koi ponds. A powerful yet energy efficient dual diaphragm SilentAir™…

Replacement Compressors for KoiAir™ Aeration Systems. If you have a KoiAir™ 1, use the KA20 and use the KA40 for KoiAir™ 2.

Keep your diaphragm aeration system running at its best with an Airmax® KoiAir™ KA Series Diaphragm Maintenance Kit. Over time, diaphragms can wear and breakdown causing decreased system performance. Airmax®KoiAir™ Diaphragm Maintenance Kits contain the parts you need to restore…

…systems and compressors, air filters should be replaced once every six months. Replacement Air Filters can be used in the following systems: 510153 fits: KA20 Compressor, ™ Aeration Systems">KoiAir™ 1 and The Pond Guy® Aeration Kit 510149 fits: KA40 Compressor, KoiAir™ 2

…with the Airmax® KoiAir™ Diffuser Plate. Comprised of 2 high-performance diffuser membrane sticks, solid one-piece airflow optimizer, check valve, and a sturdy base plate. Membrane diffusers take place of cumbersome traditional air stones, making the KoiAir™ Diffuser place virtually…

The control valve allows you to balance airflow between multiple diffuser plates if desired. Replacement part for Airmax® KoiAir™ 2 Aeration Kits purchased 2015 or later. Designed for use with Airmax®SilentAir™ KA40 Aeration Compressor.

Replacement rubber coupler and two spring or squeeze clamps for the following water garden aeration kits: The Pond Guy® Water Garden Aeration Kit and Airmax® KoiAir™ Aeration Kits.

Designed for use with Airmax® SilentAir™ KA40 Aeration Compressor (for models purchased prior to 2015), this diverter valve effectively splits the main air outlet into two valves allowing you to connect multiple aeration plates. To install the KA40 diverter valve, simply slide onto the…