AA-DUCT009 150mm / 6" Brown External Grille with Non Return gravity flaps

Non-return shutter flaps close automatically when not in use.
Stops condensation, unpleasant odours, noises, or draughts flowing back through your duct.
Wipe-clean UV stabilised design for indoor or outdoor use.
Easy to install & durable.
Compatible with 150mm round ducting

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SKU AA-DUCT009

Our price: £7.00

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6 inch / 150mm round male spigot on the back of the grille fits inside our 150mm rigid pipe or 152mm Flexible Hose
Non-return shutter flaps close automatically when not in use.
UV stabilised design to help prevent colour fade.
Stops unpleasant odours, noises, or draughts flowing back through your duct.
Gravity flap - no need for springs that break.
Wipe-clean durable design for indoor or outdoor use
Suitable to use in compliance with Part F Building Regulations.
Airflow performance independently tested by BSRIA or BRE.
Free Air: 16,000 mm2.
Static Pressure Drop in Pascals: 15 l/s = 6.91 Pa - 30 l/s = 8.76 Pa - 60 l/s = 11.10 Pa.
Built to last out of high-quality Polystyrene/Polypropylene plastic Material.
Max / Min Temperature: +60c / -15c.
Easy to install and durable, just push-fit duct and fittings together.