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…

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.

…performance of your aeration 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, KoiAir™ 1 and The Pond Guy® Aeration Kit 510149 fits: KA40 Compressor, KoiAir™ 2