It therefore has to be larger than 150mm to accommodate the thickness of the ducting tube wall plus a little tolerance. 150mm system wall plate for use with 150mm round ducting systems. Makes good internal wall.
125mm round wall plate for ducting, ventilation tube, core vents, extractor fans
4" [100mm] Duct Hose Interlocking Wall Plate + Hose Coupler + Blanking Plate
6" [152mm] Duct Hose Interlocking Wall Plate + Hose Coupler + Blanking Plate
5" [127mm] Duct Hose Interlocking Wall Plate + Hose Coupler + Blanking Plate
Universal Gas Cooker Oven Hose Bayonet Angled Straight Wall Plate PTFE
Microwave Mica Board Wave Guide Protector Cover Wall Plate 100x120mm
