FasNSeal Collection 18 Inch Single Wall Length of 4 Inch Diameter FasNSeal Pipe Warranty Notice: M&G DuraVent warranty applies to this professional grade product only when installed by a trained professional installer. This FasNSeal 18 Inch Single Wall Length of 4 Inch Diameter FasNSeal Pipe features a patented built in mechanical locking band and triple lipped directional gaskets which allows for ease of installation. Use to vent category II, III and IV appliances.
B87C Features: A "partial throttle" type throttle valve allows a light blow for starting the tool. Improved, powerful, short-throw, face contact valve is virtually unaffected by wear. Valve Chest is reached easily by removing two short side rod bolts and backhead.
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