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Horizontal Front Extension Sleeve - Fits between the airbrick and upper front opening of the telescopic underfloor ventilator to accommodate extern...
£3.48
Duct Adaptor - Fits on to the lower rear opening of the telescopic underfloor ventilator to allow a standard 110mm external diameter plastic underg...
£5.94
The multi-function 1143 cavity wall weep designed for cavity ventilation and reliable discharge of water from inside cavity walls. This could be ov...