Photo of Airmax KoiAir 1 Diaphragm Assembly Set
Photo of Airmax KoiAir 1 Diaphragm Assembly Set
Airmax KoiAir Diaphragm Assembly Set
Photo of Airmax KoiAir 1 Diaphragm Assembly Set
Photo of Airmax KoiAir 1 Diaphragm Assembly Set
Airmax KoiAir Diaphragm Assembly Set
-20%

Airmax KoiAir Diaphragm Assembly Set

  • SKU: AM-510145
  • UPC: 811262013970
  • Brand: Airmax
  • Type: Replacement Parts
$39.99
$49.99
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Photo of Airmax KoiAir 1 Diaphragm Assembly Set
Airmax KoiAir Diaphragm Assembly Set
$39.99
$49.99

The KoiAir 1 Diaphragm Assembly Set is designed to restore proper airflow and operating efficiency in koi pond aeration systems as internal components naturally wear over time. Diaphragms play a critical role in oxygen delivery, and reduced performance is often the first sign they need replacement.

This replacement set allows the compressor to return to peak performance without the cost of a full unit replacement. It is an essential maintenance part for maintaining stable oxygen levels in koi ponds and larger water features.

Why Choose the KoiAir 1 Diaphragm Assembly Set?

  • Restores Performance: Replaces worn diaphragms that reduce airflow and bubble output.
  • System-Specific Fit: Designed specifically for the KoiAir 1 aeration system.
  • Supports Pond Health: Maintains consistent oxygen levels for fish and beneficial bacteria.
  • Cost-Effective Repair: Extends compressor life without full replacement.
  • Routine Maintenance: Ideal when airflow weakens or as part of scheduled servicing.

PRO TIP

If airflow loss appears gradual rather than sudden, diaphragm wear is often the cause. Replacing diaphragm assemblies early helps prevent uneven aeration and unnecessary strain on the compressor.

  • Product Type: Diaphragm assembly set
  • Compatible System: KoiAir 1 aeration system
  • Function: Restores compressor airflow and pressure
  • Application: Koi ponds and large water gardens
  • Maintenance Type: Internal compressor service component

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 $17.99 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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