Quiet, Reliable SilentAir Rocking Piston Compressor for PondSeries Aerators
Bring your Airmax aeration system back to full strength with a genuine SilentAir Rocking Piston Compressor. Choose the G25, G50 or T75 in 115V or 230V to match the compressor you're replacing.
- Quiet Operation: Rubber compressor mounts reduce noise and vibration.
- SmartStart Protection: Integrated SmartStart Technology protects the compressor during pressurized restarts after a power interruption.
- Built for 24/7 Duty: Continuous-duty design keeps oxygen flowing to your pond day and night.
- Oil-Less Design: No oil to check or change.
- Easy to Service: Replaceable air filters and piston maintenance kits keep it running for years.
Choose the Right Airmax Compressor for Your System
Match the model and voltage printed on your existing compressor's label: G25 (RP25 87R), G50 (RP50 87R) or T75 (RP75). Not sure which one you have? Send us a photo of the label and we'll confirm the right replacement before you order.
Airmax G25 Rocking Piston Compressor (1/4 HP)
The smallest SilentAir model, built for lighter-duty Airmax aeration systems.
Airmax G50 Rocking Piston Compressor (1/2 HP)
A mid-range replacement for aeration systems running the RP50 87R compressor.
Airmax T75 Rocking Piston Compressor (3/4 HP)
The most powerful model we carry, delivering up to 5.6 CFM for larger PondSeries systems.
Airmax Compressor Technical Specifications
| Specification | G25 (RP25 87R) | G50 (RP50 87R) | T75 (RP75) |
| Horsepower | 1/4 HP | 1/2 HP | 3/4 HP |
| Voltage | 115V or 230V | 115V or 230V | 115V or 230V |
| Running Amps (115V / 230V) | 1.6 / 0.8 | 4.1 / 2.1 | 4.3 / 2.15 |
| Power Cord | 34" | 34" | 34" |
| Max Diffuser Depth | 50 ft | 50 ft | 50 ft |
| Design | Oil-less, SmartStart | Oil-less, SmartStart | Oil-less, SmartStart |
| Warranty | 2 years | 2 years | 2 years |
Airmax SilentAir Compressor Maintenance Schedule
- Air filter: Replace every 3–6 months.
- Piston maintenance kit: Every 12–24 months, depending on running pressure.
Keep your compressor running like new with the matching Airmax SilentAir Compressor Maintenance Kits.
Airmax SilentAir Rocking Piston Compressor Manuals
- FREE Shipping via FEDEX, LTL Ground, & UPS. Ships in 2-3 Business Days.
- Ships Only to Lower 48 States of the United States
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