DuraLiner Collection 8 Inch Chimney Relining Round - Oval 30 Degree Stove Connector Warranty Notice: M&G DuraVent warranty applies to this professional grade product only when installed by a trained professional installer. This DuraLiner 8 Inch Chimney Relining Round - Oval 30 Degree Stove Connector efficiently helps venting of heating appliances while protecting masonry chimneys from the damaging effects of flue gas. Use to connect stove to round or oval DuraLiner pipe at a 30° angle. Features: Inner Diameter: 8" Fuel Types Compatible With: Wood/Oil/Coal, Gas, Pellet UL Listed: Yes Length: 12.25" Double Wall Construction Limited Lifetime Warranty DuraLiner ensures safe and efficient venting of heating appliances, while protecting the masonry chimney from the damaging effects of flue gas. It is the only factory-insulated product with zero/zero clearance for high heat wood-burning appliances. No need to uncoil flex, insulate a majority of the pipe, or protect the insulation when installing. A smooth inner means less creosote buildup. Installers reduce labor time by 50% or more with DuraLiner. No time wasted wrapping insulation around liner for UL 1777 approval. No spacers needed to maintain clearance in tight offsets or dampers. Looking for Simpson Dura-Vent? You found it! Simpson Dura-Vent has changed their name to DuraVent. DuraVent is a recognized technological leader in the venting industry. Consistently the first to market with new innovations in venting systems, DuraVent has captured a leadership position in emerging markets. DuraVent has patents for several products and continues to design safe and technologically advanced venting. The company's research into solving problems with corrosion, when biofuels such as corn are used, led to the break-through patent for PelletVent Pro. Scientifically proven materials and unequalled engineering make DuraVent products not only the best choice, or safest choice, but the only choice for professional quality venting products.