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MixAir Retro RB4 Diffuser

SKU: M826-000-1E

Brand: MixAir

Type: Aeration Diffusers

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Economical to operate, the MixAir Retro™ RB4 Diffuser has a small footprint and a large impact on water quality.

Use for:
  • Diffuser / Aerator
  • Turnover / Mixing


  • In stock
  • Unavailable


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Use the MixAir Retro RB4 to economically aerate mid-sized recreational bodies of water or vigorously mix industrial tanks. It can transfer more oxygen and mix more liquid per horsepower than any other competitive diffuser.

The Retro RB4 is a fine bubble diffuser that both aerates and mixes in one efficient device. It is designed to generate dissolved oxygen throughout a water column to accelerate inversion or turnover which keeps water fresh.

The RB4 works 24/7 to improve water clarity, stimulate biological activity and provide continuous mixing at a lower power consumption than traditional mixers with the benefit of aerating at the same time.

  • Dimensions: 20" L x 11.25" W x 5.25" H
  • Weight: 1.4 lbs
SCFM Range

1.5 - 4.5

Minimum Depth

5 feet


Schedule 40/80 PVC, UV inhibited

Fitting Size

1/2" FNPT


0.85" O.D. patent protected compound extrusion

  • 1/2" MNPT fitting for airline
  • Compressor sized to deliver desired PSI and SCFM
Minimum Operating Depth

5 feet

Active Surface Area

192 sq in

Linear Lift


Flow Interference



1 year

  • Construction: Schedule 40/80 PVC, UV inhibited
  • Membrane: 0.85" O.D. patent protected compound extrusion
  • SCFM Range: 1.5 - 4.5
  • Minimum Operating Depth: 5'
  • Flow Interference: 0.85"
  • Active Surface Area: 192 sq in
  • Linear Lift: 144"

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