Marquis by Kingsman Flex Pipe Adapter Kit for Vent Applications Z58PVAFlex Pipe Marquis by Kingsman Adapter Kit for Vent Applications Z58PVA Product Details This Kingsman Z58PVA Flex Pipe to Power Vent to Hard Pipe Adapter Kit is simply one of the various adapter kits available through Kingsman Fireplaces. This adapter is designed to transition from a flexible chimney pipe to a hard chimney pipe. Perhaps for one of those quirky twists in your chimney that needs a flexible lining instead of a solid metal pipe. Features: