The Airmax Koi Air diaphragm replacement kit will keep your Koi Air 1 and Koi Air 2 compressor running well.
Be sure to select the appropriate package for your specific compressor. The Koi Air 1 uses the KA20 compressor and the Koi Air 2 uses the KA40 compressor.
Diaphragms are a wearable part in this system and should your compressor lose air output, it will most likely be that the diaphragms need to be replaced. Be sure to watch the video (in video tab) for the complete process of replacing the diaphragms.
Kit includes a replacement air filter, 2 diaphragms, caps, and plugs.