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Rubber Membrane Air Diffusers for Pond Air Pumps

EasyPro Rubber Membrane Air Diffuser | 6 Options

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  • Strong, long lasting EPDM rubber membrane tubular air diffuser.
  • A Universal air diffuser that is compatible with many brands of air pumps on the market.
  • Accepts from 1/4" up to 1/2" ID air tubing, depending on diffuser model (see Specs Chart below).
  • Perfect for pond aeration, circulation and destratification.
  • Easier to clean and more clog-resistant than air stones.
  • Available lengths: 4", 6", 8" and 12" long diffusers.
  • Please Note: 4" and 8" diffusers are available only in Barb connections and 6" and 12" are available in Barbed or Threaded MPT connections.

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$14.99 - $32.50

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The Rubber Membrane Tubular Air Diffuser is an ideal addition to a pond aeration system to oxygenate and circulate the water in your pond or water garden. The increase in dissolved oxygen improves water clarity and quality, and the circulation makes water temperatures in the entire pond more uniform. These improvements help koi fish and other aquatic life. To operate, this diffuser must be connected with tubing to a compressor (air pump).

Note: These rod-shaped rubber diffusers are very strong and easier to clean than air stones.

Pump and tubing are not included. 

The EPDM rubber tubular air diffuser is available in different lengths. Each diffuser is 1.5 inches in diameter. Models with barbed inlets feature multiple sized barbs, which can be cut to fit a variety of airline tubing. 

ModelConnector Type & SizeRecommended Air FlowMax Air Flow
RAD4 1/4" - 3/8" Barb 0.2 CFM / 5.7 LPM 1.1 CFM / 31.1 LPM
RAD6 1/4" - 3/8" Barb 0.4 CFM / 11.3 LPM 1.7 CFM / 48.1 LPM

RAD650W- (Self-weighted)

 1/2" MPT 0.4 CFM / 11.3 LPM

1.7 CFM / 48.1 LPM
RAD8 3/8" - 1/2" Barb 0.7 CFM / 19.8 LPM 2.5 CFM / 70.8 LPM
RAD12 3/8" - 1/2" Barb 0.9 CFM / 25.5 LPM 3.5 CFM / 99 LPM
RAD1250 1/2" MPT 0.9 CFM / 25.5 LPM 3.5 CFM / 99 LPM
  • Strong, long lasting EPDM rubber membrane tubular air diffuser.
  • A Universal air diffuser that is compatible with many brands of air pumps on the market.
  • Accepts from 1/4" up to 1/2" ID air tubing, depending on diffuser model (see Specs Chart below).
  • Perfect for pond aeration, circulation and destratification.
  • Easier to clean and more clog-resistant than air stones.
  • Available lengths: 4", 6", 8" and 12" long diffusers.
  • Please Note: 4" and 8" diffusers are available only in Barb connections and 6" and 12" are available in Barbed or Threaded MPT connections.
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