Photo of Airmax SilentAir G50 (RP50 87R) 1/2 HP Maintenance Kit
Photo of Airmax SilentAir G50 (RP50 87R) 1/2 HP Maintenance Kit
Airmax SilentAir G50 (RP50 87R) 1/2 HP Maintenance Kit
Photo of Airmax SilentAir G50 (RP50 87R) 1/2 HP Maintenance Kit
Photo of Airmax SilentAir G50 (RP50 87R) 1/2 HP Maintenance Kit
Airmax SilentAir G50 (RP50 87R) 1/2 HP Maintenance Kit
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Airmax SilentAir G50 (RP50 87R) 1/2 HP Maintenance Kit

  • SKU: AM-510511
  • Brand: Airmax
  • Type: Replacement Parts
  • Barcode: 813166027077
$311.99
$389.99
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Photo of Airmax SilentAir G50 (RP50 87R) 1/2 HP Maintenance Kit
Airmax SilentAir G50 (RP50 87R) 1/2 HP Maintenance Kit
$311.99
$389.99

The SilentAir G50 (RP50 87R) 1/2 HP Maintenance Kit is designed to restore proper airflow and efficiency in dual rocking piston compressors used in pond and lake aeration systems. Over time, internal wear components naturally degrade, reducing output and increasing strain on the compressor.

This complete service kit includes all critical replacement parts needed to return the compressor to optimal operating condition, helping maintain consistent oxygen delivery and long-term system reliability.

Why Choose the SilentAir G50 Maintenance Kit?

  • Restores Performance: Replaces worn internal components that reduce airflow and pressure.
  • Complete Service Kit: Includes all essential seals, pistons, and valve components.
  • Planned Maintenance: Designed for routine service every 12-18 months.
  • Broad Compatibility: Supports multiple PondSeries, Shallow Water HP, and LakeSeries systems.
  • Extends Compressor Life: Preventive maintenance helps avoid premature compressor failure.

Kit Components

  • Head O-Rings: 4
  • Valve Plate with Pre-Installed Leaf Valves: 1
  • Cylinder Sleeves: 2
  • Piston Cups: 2
  • Cylinder O-Rings: 2
  • Torx Head Screws: 4

PRO TIP

During reassembly, lightly lubricate O-rings and ensure all fasteners are evenly torqued. Uneven tightening can lead to air leaks and reduced compressor efficiency.

  • Product Type: Compressor maintenance kit
  • Compressor Compatibility: SilentAir G50 (RP50 87R) 1/2 HP dual rocking piston
  • Recommended Service Interval: Every 12-18 months
  • Compatible Aeration Systems: PondSeries PS20 (2022-present), SW40HP, PondSeries PS20 and PS30, LakeSeries LS40 (2016-2022)
  • Included Components: Valve plate, O-rings, cylinder sleeves, piston cups, fasteners

Shipping Information

We aim to get your pond and water garden supplies to you as quickly as possible.

  • Orders over $250 ship free across North America.
  • A flat rate of $14.99 applies to all smaller orders.
  • Standard delivery takes 1 to 4 business days.
  • Most in-stock items are dispatched within 24 hours.
  • Special order items may require 2 to 14 business days before shipping, depending on availability.
Returns & Exchanges

If something isn’t quite right, we’ve got you covered.

  • Returns are accepted within 30 days of delivery.
  • Items must be unused, in original packaging, and include all parts and proof of purchase.
  • All returns require prior authorization. Items sent without approval will not be accepted.
  • Shipping costs are non-refundable unless the item is confirmed defective upon delivery.
  • Items marked as Clearance, Special Order, or Final Sale are non-returnable and cannot be cancelled, returned, or refunded.

For full details, please review our Shipping Policy and Refund Policy.

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