Part of a range of accessories to provide horizontal or vertical extension to the Timloc telescopic underfloor ventilator to accommodate different wall/cavity/brick courses etc.
Fits between the airbrick and upper front opening of the telescopic underfloor vent to accommodate external walls of more than 102.5mm thickness - up to 215mm (multiple units can be fitted and trimmed to suit wall thicknesses above this).

Horizontal Front Extension Sleeve For Telesopic Vents 1203

SKU: 29751064