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Your cart is empty.The DuraVent PelletVent Pro Wall Thimble Air Intake Kit, 3-Inch Diameter (3PVP-WTI) allows outside fresh air for combustion through the wall thimble without having to cut a second hole into the wall. This kit comes with an insulation ring to reduce air infiltration where the pipe slips through the thimble. Clamps are included and the 2-inch diameter flex hose is 10 feet in length. PelletVent Pro is engineered with features for a durable, safe and aesthetically pleasing venting system. PelletVent Pro is a patent-pending venting system for stoves and inserts that use wood pellets, corn and other biofuels, or oil, as fuel. As a result of a cutting-edge manufacturing process and commitment to innovation, PelletVent Pro is uncompromised in attention to detail and performance. PelletVent Pro is UL listed for 1-inch clearance to combustibles in the USA and in Canada. It’s double-wall, air-insulated design offers superior performance. Seams are factory sealed on all elbows, tees, and fittings. Since the introduction of pellet stoves in the 1980s, DuraVent is recognized as the industry leader in venting systems for pellet stoves.