DuraVent, 20DT-CTF, Class A, 20 Inch DuraTech, Vent Pipe, Flashing, DuraTech Collection 20" Class A Chimney Pipe Chase Top Flashing Warranty Notice: M&G DuraVent warranty applies to this professional grade product only when installed by a trained professional installer. The DuraTech 20" Class A Chimney Pipe Chase Top Flashing encloses the top of a chase while providing a ventilation air passage from the chase. It is UL listed and includes spacer clips. Storm collar is not included. Features: Inner Diameter: 20" Outer Diameter: 22" Dimensions: 40" x 40" Includes Spacer Clips Storm Collar Not Included UL Listed DuraVent now offers DuraTech in large diameters to vent large-scale residential fireplaces and building heating appliances. DuraTech chimney is tested and listed for continuous operation at 1000 F flue gas temperatures, one hour at 1400 F and ten minutes at 1700 F, in accordance with the UL 103 test standard. 10-24 large diameter DuraTech is a 1 wall, all-fuel chimney system for use with wood stoves, fireplaces, furnaces, boilers, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas. 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.
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