Product No 1206 - This horizontal rear extension sleeve is for the rear opening of a telescopic underfloor vent to accommodate cavity widths of 50-150mm or internal walls more than 100mm thick (maximum 200mm). Fits into the lower rear open…View more
Fits into the lower rear opening of the telescopic underfloor ventilator to accommodate cavity widths between 50-150mm or internal walls of more than 100mm thickness, up to a maximum of 200mm.
1206 should be fitted with the stepped down connection in the lower rear opening of the ventilator. The vermin grille must first be removed to allow this, and then replaced at the other end of the extension sleeve. Cut down from the vermin grille end for required length.