The G961 Vertical Extension Sleeve has been designed for use with the Manthorpe range of Telescopic Underfloor Ventilators. Each extension sleeve allows the vent to reach a further two brick courses vertically.
Product Description & Key Features
The G961 Vertical Extension Sleeve has been designed for use with the Manthorpe range of Telescopic Underfloor Ventilators. Each extension sleeve allows the vent to reach a further two brick courses vertically. The sleeve can also be fitted to the base of the underfloor vents to provide a longer horizontal extension through larger cavities.
Colour: Black
Size: 50 x 235 x 215mm
Free Vent Area: 7,000mm²
Vertical Extension: 150mm
Vertical Span: 2 Extra Courses
Horizontal Span: Extra 180mm
Packaging: 20 per box
Box Weight: 4.0kg
Material: Polypropylene
Manufacturing Process: Injection Moulded
Single Person Installation: Yes