Whether you are modifying an existing system or replacing your current compressor, you can depend on these high-quality, continuous-duty aeration pumps. Airmax SilentAir RP Series Rocking Piston Replacement Compressors are the heart and soul of Airmax Aeration Systems. Built with Integrated SmartStart Technology (IST) the air compressors are protected during pressurized restarts following power supply interruptions.
These highly efficient air pumps cam produce 2.3 to 7.1 CFMs at 0.8 to 3.15 Amps, while costing as little as $0.44 to $1.73 per day. Each replacement aeration compressor is backed by a 2-year warranty and comes with a 34" power cord. Select from 115V or 230V in 1/4, 1/2, 3/4, or 1 horsepower options.
![]() G25 (RP25 87R)
| ![]() G50 (RP50 87R)
| |
---|---|---|
Compressor | 1/4 HP Single Piston | 1/2 HP Dual Piston |
Model | G25 (RP25 87R) | G50 (RP50 87R) |
Voltage | 115V or 230V | 115V or 230V |
Running Amps | 1.6 or 0.8 | 4.1 or 2.1 |
Wattage | 184 | 472 |
Maximum Diffuser Depth | 50' | 50' |
Max CFM | 2.3 | 4.7 |
Compatible Airmax Aeration Systems |
(Post 2016) SW20HP & PS10 |
(Post 2016) SW40HP, PS20 |
Warranty | 2-Year | 2-Year |
~Daily Operating Costs* 24Hrs/Day |
$0.44 | $1.13 |
![]() T75 (RP75)
| ![]() T100 (RP100)
| |
---|---|---|
Compressor | 3/4 HP Dual Piston | 1 HP Dual Piston |
Model | T75 (RP75) | T100 (RP100) |
Voltage | 115V or 230V | 115V or 230V |
Running Amps | 4.3 or 2.15 | 6.3 or 3.15 |
Wattage | 495 | 725 |
Maximum Diffuser Depth | 50' | 50' |
Max CFM | 5.6 | 7.1 |
Compatible Airmax Aeration Systems |
PS40 with 3 or 4 Diffuser Plates & LS80* |
PS60 & LS120* |
Warranty | 2-Year | 2-Year |
~Daily Operating Costs* 24Hrs/Day |
$1.19 | $1.74 |
*Daily Operating Cost was calculated at $0.10 per kilowatt hour. Please note that costs will vary depending on location.
*RP25(87R) 1/2HP Compressor has a max depth of 10' when used with the Shallow Water HP Series, but when used with the Airmax PondSeries (Pre-2022 models) the max depth is 21' or 50' when airline is connected to a camlock kit.