Part Number: 4910
eFireplaceStore Item Number: CPF-69212
The DuraVent DuraFlex zero clearance insulation sleeve requires use of this Insulation Clamp in order to meet UL 1777 standard for masonry chimneys and wood burning appliances. DuraFlex insures safe and efficient venting of heating appliances, while protecting the masonry chimney from the damaging effects of flue from the gunk inside the flue. This insulation clamp is intended for used with either 6 in. or 8 in. DuraFlex stainless steel chimney liner, and is made from single wall .005 in. stainless steel 304 or 316 Ti stainless steel.