Combined Air (Deaerator) & Dirt Separator

Removes 99% of air, dirt and magnetite in just one pass.

Installed at the hottest point in the system, the special design of the filter will ensure that air, microbubbles and all types of dirt including magnetite down to 2-3 microns will be quickly removed from the system, minimising the time that the contaminants reside in the HVAC system.

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Reasons to choose 1Pass.

  • Keeps the water within the system cleaner and free from contaminates by removing 99% of air, microbubbles and all types of dirt including magnetite down to 2-3 microns.
  • As the water within the system is cleaner, it helps prevent the system corroding after initial install
  • The unit works exceptionally well at higher pressures than the competition; 6 bar within heating systems and 4 bar within chilled water for microbubble removal.
  • Made in stainless steel which offers numerous benefits over mild steel
  • Due to the smooth surface of stainless steel, sludge and dirt is flushed quicker and easier from the system.
  • The associated lifecycle costs are reduced as stainless steel is inert in water, meaning minimum downtime and reduced costs for inspection, maintenance and repair.

How does 1Pass work?


With a local heritage in working with stainless steel, we offer superior stainless steel air and dirt separators.

  • Reduced Lifecycle Costs
  • Lighter Weight
  • Environmentally Friendly
  • 100% Recyclable
  • Reduced Energy Costs
  • British Design & Manufacture
  • Easy to install and handle
  • Corrosion Resistant
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Are you a mechanical or electrical contractor or consultant?

We specialise in ensuring you have the correct Air and Dirt Separator specified for your building projects. Give us a call to speak to one of our experts or click below for a quick reference guide.

Quick Reference Guide
10 Year Warranty


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