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M3 Anti-Flood Airbrick

M3 Anti-Flood Airbrick

M3 Anti-Flood Airbrick

£31.00 £37.20 (inc. VAT)
  • Achieved Kite Mark PAS 1188-1:2014
  • Extremely effective and simple
  • Straight replacement for a standard clay airbrick
  • Easily fitted by any competent builder or DIY
Engineer's Blue
countdown timer

According to Know Your Flood Risk, up to 500 litres of water a minute can enter into a property through a single airbrick alone.

Available in 5 standard colours, the M3 Anti-flood Airbrick is the world's first BSI Kitemark™ certified airbrick to protect against flooding.  (PAS 1188-1:2014)

Each airbrick is a straight replacement for a single clay airbrick co-ordinating size 225mm by 75mm.

The airbrick can be fitted by any competent builder.

Available in 5 Colours:

There are a choice of colours: Terracotta, Buff, Engineer's Blue, Black, or White.

Key Features:

  • Suitable for use in listed buildings
  • Can be retro fitted or used in new build construction
  • Made from recycled polypropylene
  • Standard colours to match exterior brickwork: terracotta, engineering blue, black, white, buff
  • 2 year manufacturer's guarantee
  • Installation instructions provided


  • Auto-closes
  • Retro-fit or new
  • Stops insects
  • Easy to install



The brick is constructed from durable materials, e.g. recycled polypropylene co-polymer with UV stabilisers against deterioration and silicone sponge. Silicone sponge has been approved by the WRAS (Water Regulations Advisory Service). The Airbrick has an excellent resistance to ozone, oxidation, ultraviolet light, corona discharge, cosmic radiation, ionising temperature of -20° to 120°.

The product has a minimum geometric open area of 2400mm2 and, therefore, can contribute to meeting the ventilation opening requirements of 1500mm2 run of opposing walls or 500mm per m of floor area for suspended ground floors, whichever is greater, and 500mm per m for wall cavities.

The product, therefore, can be used to meet the relevant requirements of the national Building Regulations and home warranty providers.


Made of recycled polypropylene. Available in standard terracotta, engineer blue, buff and other colours available subject to a minimum order level.


BSI Kitemark licensed product (KM563624). Passed the rigorous testing criteria of PAS 1188-1:2014.


Length – 210mm
Height – 62mm
Depth – 73.5 mm


2 year manufacturer's guarantee.


Please note, next day delivery is not available on this item. Delivery is expected to be circa 2-3 working days from stock.

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