Airmax SilentAir G25 (RP25 87R) 1/4 HP Rocking Piston Compressor – 115V
The Airmax SilentAir G25 (RP25 87R) is a high-efficiency 1/4 HP single-piston compressor designed as a replacement compressor for compatible Airmax pond aeration systems.
Producing up to 2.3 CFM, this compact rocking piston compressor is designed for reliable, energy-efficient operation and features SmartStart Technology, which helps protect the compressor during pressurized restarts following a power interruption.
The 510503 is the 115-volt replacement compressor for Airmax SW20HP and PS10 aeration systems and is suitable for aeration applications with diffuser depths up to 50 feet.
Specifications:
- Airmax Part #: 510503
- Model: G25 (RP25 87R)
- Compressor: 1/4 HP Single Piston
- Voltage: 115V
- Running Amps: 1.6A
- Wattage: 184 Watts
- Maximum Airflow: 2.3 CFM
- Maximum Diffuser Depth: 50 ft
- Replacement for: Airmax SW20HP and PS10 (post-2016)
- Warranty: 2 Years
- UPC: 813166022331
Maintenance:
For continued performance and maximum compressor life, periodic maintenance is recommended. The correct maintenance kit for this RP25 87R compressor is Airmax #510510.
Important: Please verify the compressor model before ordering. Airmax has produced different versions of the RP25 compressor, and replacement parts/maintenance kits are model-specific.

