Built in back single spring operated draught shutter. 159mm wide x 159mm high x 15mm deep (visible beyond installed surface). This model for fan is designed to run on for a short period after the room light is switched off.
Vent Axia 436532 Extractor Fan with Timer & Backdraught Shutter
2 x Vent Axia 436532 Extractor Fans with Timer & Backdraught Shutter
Vent Axia 441423 Lo-Carbon Vent-a-Light In-Line Extractor Fan &Light (Standard)
Vent-Axia Extractor Fan Lo-Carbon DMEV 100mm Humidistat Timer 498096 Vent NBR
Vent Axia 251410C VA100XT Axial Extractor Fan with Timer & Automatic Shutter
LHP01 Extractor Fan (Vent Axia Response 7 Pro Fan 494144 )
