4 inch Dia Noise Insulation External Wall Wind Sound Baffle Vent Cover Draft Excluding Air Ventilation for Extractor Fans Heat Recovery Cottage Hotel Café

100mm (4") dia duct connections.Decoration of supply and exhaust vents of public, residential and industrial ventilation systems. Modern, wind and sound reducing wall mounted baffle vent with UV protection. Can be used for air intake or extract.Compatible with Ø 100 mm air ducts. Removable hood for easy cleaning with drip tray. Non-inflammable.Preferred choice for MVHR, MEV, dMEV & single room heat recovery systems., Weight: 1.1464037624 pounds, Manufacturer: Fantronix