Kair Black Gravity Grille 155mm External Dimension with 100mm - 4 inch Round Rear Spigot and Not-Return Shutters Ducting Air Vent
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Product description
- Black Plastic Ducting Air Inlet Air Outlet with Gravity Shutters. 155mm x 155mm external dimension with 4 inch 100mm round male rear spigot on the back of the grille for indoor or outdoor use.
- Non-return shutter flaps close automatically when not in use. Stops unpleasant odours, noises, or draughts flowing back through your duct. Gravity flap - no need for springs that could break.
- Easy to install, just push-fit duct and fittings together. Perfectly suited Bathroom or Kitchen extractor fan, Hydroponics fan, or In-Line Extract Fan.
- This grille can be used as a part of a long ductwork run for a variety of purposes including whole house ventilation, passive ventilation, positive input, air conditioning, HVAC, and Heat Recovery Systems.
- Suitable to use in compliance with Part F Building Regulations. Airflow performance independently tested by BSRIA or BRE. Free Air 7200mm2. Static Pressure Drop in Pascals 15 l s 10.94 Pa - 30 l s 18.59 Pa - 60 l s 24.21 Pa.
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