Pressure releif valve for releasing of air if system pressure rises above safe operating levels for compressor. Check valve which prevents freeze up of air line during periods of shut down by holding air in line between check valve and diffuser preventing water from backing up into the line. Cooling fan to prevent power pack housing from becoming too hot and overheating compressor. Feeder tubing for delivering air from the power pack housing unit to diffusers. Either poly-pipe or self weighted tubing is used.
Stainless steel clamps for connecting tubing.
Nylon brick ties when polypipe is used. Fiberglass or steel cabinet with sound reduction insulation. Rope and float marker to identify diffuser location. Manual starter with thermal overload with all units 2 HP and larger. Do not at any time lubricat any of the parts with oil, grease, or petroleum products nor claen with acids, caustics, or chlorinated solvents.