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HF High Flow Diffuser

    • Product Details


      The Waterloo High Flow diffusers are designed to give exceptional performance and the visual appearance of an architectural shadow gap that has become a very desirable design feature within buildings.

      High Flow Diffusers are available in two variants: HFC (High Flow Coanda), which is usually ceiling mounted, providing a horizontal throw through the Coanda effect; and HFD (High Flow Directional) which is generally mounted in a wall for directional horizontal projection of air into a space or provide a coanda throw if positioned close to a horizontal surface.

      The High Flow diffusers are designed to handle a range of air capacities from low to high volumes. It features an excellent air distribution pattern to eliminate draughts in the occupied zone. Available as a single slot and multi sections for continuous linear runs.

      HFC and HFD are manufactured using aluminum extrusions and feature easily adjustable hidden air pattern control elements.

      The standard bordered version is available with a RAL polyester powder coated border with black internals.

      The Plasterline version (PL) is available when a plastered in product is required, the internals of the products are finished in black to maintain the shadow gap appearance.

      Product Description

      • HFCHigh Flow Coanda
      • HFDHigh Flow Directional
      • HFC-PLHigh Flow Coanda Plasterline
      • HFD-PLHigh Flow Directional Plasterline


      • High capacity
      • Strong coanda pattern for best performance
      • Hidden control elements
      • Continuous joint detail for long runs
      • 3 slot sizes available



        • PPG9010 (RAL 9010 Gloss - 80% Gloss White)
        • PPM9010 (RAL 9010 Matt - 20% Gloss White)
        • PPM9006 (RAL 9006 Matt - 30% Gloss Silver) Other colours available on request


      • Anodised black only


      3 standard slot sizes are available 25mm, 40mm and 60mm, standard module lengths are 1500mm.


      Dim Size 25 40 60
      A 25 40 60
      B (STD) 45 45 45
      B (PL) 55 55 55
      C 60 60 60
      D 88 103 123


      Product Specification

      Related links

      High Flow Installation Maintenance Guide

      Plenum Insulation Thermal & Acoustic specification


      For more information please use our contact form;

      Call our Sales and Customer Service Hot Line:

      01622 711511



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