Airmax® SilentAir RP Series Rocking Piston Compressors


Whether you are modifying an existing system or replacing your current compressor, you can depend on these quality, efficient and continuous-duty Airmax® SilentAir™ RP Series Rocking Piston Compressors. One year warranty.

Tech Specs

Airmax(r) SilentAir(tm) RP25(87R) Compressor
Airmax(r) SilentAir(tm) RP50(87R) Compressor
Airmax(r) SilentAir(tm) RP75(72R) Compressor
Compressor 1/4 HP Dual Piston 1/2 HP Dual Piston 3/4 HP Dual Piston
Model 87R 87R 72R
Voltage 115V or 230V 115V or 230V 115V or 230V
Maximum Diffuser Depth 21'** 21'** 21'**
Max CFM 2.3 4.7 5.8
Running Amps 1.6 or 0.8 4.1 or 2.1 5.3 or 2.7
Replacement Unit For SW20HP & 2016 - Current PS10 SW40HP, PS20, PS30 & LS40 PS40, PS80 & LS60
Warranty 1 Year 1 Year 1 Year

*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 the max depth is 21' or 50' when a deep water conversion kit is installed.

**Compressors have a maximum depth of 21' when used with 3/8" airline, but can operate up to 50' max depth when 5/8" airline and Deep Water Kit (sold separately) is used.

Not sure what maintenance kit or replacement compressor you need for your current Airmax® Aeration System? Click here for more information.


Usage Information

Replacement Parts

Here are the replacement parts for Airmax ® SilentAir ™ RP Series Rocking Piston Compressors.

Weeds Treated

The first step towards effectively treating any pond weed is proper identification. Airmax® SilentAir RP Series Rocking Piston Compressors is recommended for use against each of the weeds listed below. Click on your desired weed for more information and alternate control options.

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