Used By Trade Professionals For Planned/Responsive Maintenance

For more advice, or to order, please call:

01799 528528

Open Mon to Fri 8:30am to 6:00pm

Closed Saturdays, Sundays & Bank Holidays

Cut off time for next working day delivery is 4:00pm


for air combustion venting for heating appliances

Please call our helpful sales team on 01799 528528 for up to date prices on the products below.
DiffuseAir - Internal Grille
Order Code: Specifications:
Not Sold Separately
Free Area = 120cm2 DiffusAir
  • Inverted quad directional ArrestAir-Pro bi-planar vane technology
  • Includes safety warning, 'Important Do Not Block'
  • Stainless steel screws and plugs.
  • Equivalent Free-area stated on each DiffuseAir depending on kit rating.
ArrestAir-Pro Grilles - for fitting over existing draughty vents
Order Code: Specifications:
ARR-PRO 135T =
Terracotta ARR-PRO 135T
  • ArrestAir-Pro vane technology
  • Universal nominal coverage of 225x150mm (9"x6") or 150mm (6") diameter
  • Stainless steel screws, plugs and installation instructions
  • 135cm2 measured Free-area
  • Overall size of grille =
    W = 256mm
    H = 230mm
ARR-PRO 135W =
White ARR-PRO 135W
  • For new installations or retro fitting for yet further wind blast protection
  • Pre drilled aluminium to fit over or behind Arrestair-Pro grilles (Grille not included, see above)
  • Overall size of wind deflector:
    W = 340mm
    H = 250mm

Applications Include:

Retro fitting over existing draughty airbricks / duct outlets, gas / oil boiler venting, gas fire venting and solid fuel venting.

This external grille can be retro-fitted over existing draughty vents, and has universal coverage.

External Grille
All prices include mainland UK delivery (exclusions apply )

Get Help or Advice!

The Condensation Shop offers a wide range of products to suit numerous condensation and damp related issues.

If you would like assistance in selecting the correct product for your specific problem please call our helpful Sales Team on 01799 528528, during normal opening hours.