As an Amazon Associate, we earn from qualifying purchases. Monsoon Polyvent 300 Firebrake Duct Connector (3087) National Ventilation . 3087 Attributes Brand name, Manufacturer name, ManufacturerNational Ventilation Extra Product NameMonsoon Polyvent 300 Firebrake Duct Connector (3087) extendedQty, qtyInStock0 moq, multiple1 MPN3087 originalCurrency{'currency': 'GBP'} qtySourceupdateFromUrlEntry snippetMonsoon Polyvent 300 Firebrake Duct Connector (3087). Fast and Free Delivery Available. Trade Quality with Low Prices. Distributor offers SellerSKUMOQIn stockMultiplePrices Electrical2go308711