4 core drill vents are designed for use when ventilating a gas appliance or supplying general through wall ventilation. Using a standard 4 core drill, the system can be fitted quickly and easily in both new build and refurbishment situations.
Main Features:
100mm (4 ‘Ï) Core drill ventilator
Easy to install with telescopic movement and louvered grille
Expands 100 to 195mm (4 to 73 ‘4 ‘Ï)
Takes extension tube BM 811/B to extend further
Plastic
Brown external
Brown internal
Technical Specification:
Diameter: 100mm
Length: 100mm – 195mm
Construction: Plastic
1 Year Guarantee Included