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Airmax Koi Air - Self-Weighted Diffuser - 2-stick

Regular price $250.38
Sale price $312.98
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Photo of Airmax Complete ProAir Weighted Diffusers
Airmax Koi Air - Self-Weighted Diffuser - 2-stick
Regular price $250.38
Sale price $312.98

Airmax Complete ProAir Weighted Diffusers are designed to deliver consistent, efficient pond aeration with minimal setup and long-term reliability. The self-weighted diffuser plate assembly sinks naturally, eliminating the need for bricks, straps, or improvised weights.

Each diffuser features two heavy-duty membrane diffuser sticks that create uniform bubble distribution for improved oxygen transfer. Unlike traditional air stones, the flexible membrane design resists clogging, cracking, and debris buildup, making these diffusers virtually maintenance-free.

Why Choose Airmax Koi Air - Self-Weighted Diffuser?

  • Self-Weighted Design: Built-in weight ensures the diffuser stays on the pond bottom without extra hardware.
  • Efficient Oxygen Transfer: Dual membrane sticks produce fine, uniform bubbles for improved absorption.
  • Wide Airflow Range: Handles airflow from 0.8 to 3 CFM for flexible system design.
  • Low Maintenance: Membrane diffusers resist clogging and eliminate stone replacement.
  • Quick Installation: Integrated 3/8" barbed inlet allows fast connection to standard airline.
  • Compressor Protection: Included check valve prevents water from entering the airline when the pump stops.

PRO TIP

For best performance, match diffuser airflow rating to your compressor output. Oversupplying air can reduce bubble efficiency, while proper matching maximizes oxygen transfer and diffuser lifespan.

  • Diffuser Type: Weighted membrane diffuser assembly
  • Membrane Diffusers: 2 heavy-duty membrane sticks
  • Airflow Range: 0.8-3 CFM
  • Inlet Size: 3/8" barbed
  • Outlet Thread: 3/4" female threaded
  • Adapter Included: 3/8" barbed tubing adapter
  • Check Valve: Included
  • Weighting: Self-weighted base plate and distribution block

Shipping Information

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

  • Orders over $199 CAD ship free across Canada (excluding oversized items).
  • 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.
  • Items marked as Clearance are final sale and cannot be returned or exchanged.

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

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