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9" x 3" Cavity Wall Extension Sleeve for Air Draught Ventilator Vent

by Timloc
Original price £6.99 - Original price £6.99
Original price
£6.99 - £6.99
Current price £6.99

Product Description



Extension Sleeve for Cavity Vent


9 x 3 inch    


Extension Sleeve for Cavity Wall ventilators

Each adaptor adds on another 200mm to sleeve length.

Adaptors can be added on to each other for extra reach.

Extendable cavity Sleeves Available in our shop.

Meets requirements for British Gas. 




To provide ventilation for heat producing appliances.To provide background room ventilation.Individual ventilation sets can supply up to maximum appliance rated input of 29kW (99,000 Btu/h)For new build, refurbishment and remedial work.


Features & benefits

Aesthetically pleasing and a simple to install modular system.Excellent airflow properties.Independently tested by BRE.Offers reduction of draughts and light compared to basic through wall ventilation.Cowl or air brick version available.Internal baffle with aerodynamic design improves airflow.Internal finish with open louvre grille (options with Hit & Miss available to special request, but not suitable for heat producing appliances.



Equivalent area tested to BS EN13141-1:2004Compliant with BS 5440-2:2000, BS 5871-3:2005 & BS 493:1995Complies with Building Regulation 2000 Approved Documents F (2004 edition) & J (2002 edition)Complies with ‘The Scottish Building Standards’ Technical handbooksManufactured to BS EN ISO 9001:2008Meets the requirements of British GasSatisfies NHBC Standards 2008


Material & colour choice

Manufactured by injection moulding in HIPS/PolypropyleneExternal brick/cowls in buff, brown, terracotta & whiteInternal grilles are white as standard