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Bubbletech Airprax Tubing

Bubbletech Airprax is a microbubble linear diffuser made for blower and compressor air rather than pressurised oxygen. Around 60,000 laser-made perforations per metre produce bubbles under 0.5mm at a low 0.35 bar working pressure. Available in 1 metre lengths or 50 metre rolls.

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Bubbletech Airprax Tubing
Bubbletech Airprax Tubing - Image 2

Product Information

Key Features

  • Microbubble linear diffuser built for air from blowers and compressors, rather than pressurised oxygen
  • Around 60,000 laser-made micro-perforations per metre producing bubbles under 0.5 mm
  • Suggested air flow of approximately 2.5 LPM per 100 cm at a low 0.35 bar working pressure
  • Low working pressure keeps blower duty and running costs down
  • EPDMX rubber construction resistant to ozone, salt water and wastewater; rated to +130 °C
  • 12 mm inside diameter / 19 mm outside diameter, 210 grams per metre
  • Available in 1 m lengths or 50 m rolls; soak new diffusers in water for a few hours before first use
  • Sizing — multiply 2.5 LPM per metre by your diffuser length, or divide your total required air flow by 2.5 LPM per metre to get the length of tubing needed.

Specifications

SpecificationDetail
MaterialEPDMX rubber
Diameter12 mm ID / 19 mm OD
Perforationsapprox. 60,000 per metre (laser-made)
Bubble sizeunder 0.5 mm
Working pressure0.35 bar
Suggested air flowapprox. 2.5 LPM per 100 cm
Weight210 g per metre
Operating temperatureup to +130 °C
Gas typeAir, via blowers and compressors
Supply options1 m lengths or 50 m rolls — other lengths available on request

Frequently Asked Questions

How much Airprax do I need?
Multiply 2.5 LPM per metre by your diffuser length, or divide your total required air flow by 2.5 LPM per metre to get the length of tubing needed.
What bubble size does it produce?
Under 0.5 mm, from around 60,000 laser-made micro-perforations per metre.
What blower pressure do I need?
0.35 bar working pressure at the diffuser, plus enough to overcome the water depth it is set at — a low-pressure blower or compressor is sufficient.
How do I clean it?
Periodically clear debris from the diffuser to maintain performance — there are no consumable parts to replace.
Do I need to soak it before use?
Yes — soak new diffusers in water for a few hours so the microbubbles form as intended.
How does it differ from Oxyprax and the Colorite Aero-Tube range?
Airprax is built for blower and compressor air at 0.35 bar, Oxyprax is the pressurised-gas version at 1 bar for oxygen, ozone and CO2, and Colorite Aero-Tube is a coarser leaky-hose product for blower air at 1 PSI.
What lengths is it supplied in?
1 metre lengths or 50 metre rolls — contact Fresh By Design for pricing and other lengths.

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