which allows you to use this as a base mount ground cabinet as well as one that could mount on a utility pole

2 years on piston cups and gaskets

Includes a 2 year warranty on the compressor and a 5 year warranty on the airline

And this is a very good thing

Amount of Diffusers = Number of 100 Foot Rolls of Alpine Weighted Airline That Are Included

Complete Air Filter Assembly Pond Treatments which allows you to useMaximize the life of your deep water or large lake aeration system by replacing the air filter cartridge every 3 6 months for maximum system performance and longevity. The complete air filter assembly is for all Airmax SilentAir RP Series Rocking Piston Compressors that are in all Shallow Water HP Series, PondSeries and LakeSeries Aeration Systems. Replacing the air filter is easy. Hold the base of the air filter and turn the top clockwise to remove