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, while 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.
$1,442.97 – $1,541.56
| Compressor | 1/2 HP Dual Piston |
| Model | 87R |
| Running Amps | 4.1 or 2.05 |
| Voltage | 115V or 230V |
| Wattage | 472 Watts |
| Max Diffuser Depth | 50 Feet |
| Max CFM | 4.7 |
| Monthly Operating Cost (24/7) | $33.95 |
| Replacement Unit For | SW40HP, PS20, PS30, LS40 (Pre-2022 PS40) |
| Warranty | 1 Year |
*Monthly Operating Cost was calculated at $0.10 per kilowatt hour. Please note that costs will vary depending on location.
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