Replacement G50 (RP50 87R) Compressors

Airmax SilentAir G50 (RP50 87R) 1/2 HP Rocking Piston Compressor is a replacement motor for the Airmax SW40HP and PS20, PS30, PS40 (Pre-2022) and LS40 Aeration Systems. This highly efficient compressor produces up to 4.7 CFMs at 4.1 running amps, costing as low as $33.95 a month. The design features SmartStart Technology (IST) that protects the compressor during pressurized restarts following power supply interruptions. Available in 115 or 230 volts.

For maximum life of your compressor, Airmax recommends the following maintenance intervals based on average running PSI: 1-7 PSI = 18 months / 8-12 PSI = 12 months / 13-15 PSI = 9 months / 16+ PSI = 6 months.