This Female Flex Adapter - 4 Inside Diameter from the PelletVent Pro series is a Type B gas component and consists of the duralock system for a tight seal.Only approved for use with bioFlex Double wall construction UL ListedADA Compliant: No Collection: PelletVent Pro Finish: Stainless Steel Fuel Type: BioFuel, Oil, Pellet Height: 4 Inside Diameter: 4 Material: Galvalume Stainless Steel Pipe Class: Type B Pipe Shape: Round Style: Contemporary Modern Vent Construction: Double Wall Weight: 2
