Z-Flex 3" x 50' Stainless Steel Chimney Liner Kit for All Fuels h35 unless a certified kit is

unless a certified kit is used

provides a premium quality hard lid/cover to protect your round fire pit

25 lbs of black reflective fire glass media

With the Flex Bench fireplace insert

Z-Flex 3" x 50' Stainless Steel Chimney Liner Kit for All Fuels h35 unless a certified kit isZ flex is engineered to quickly conduct heat, assisting in a natural draft system. Kit must be insulated for wood burning applications. (US Only). Note: For Use with Natural Draft Appliances. Not intended for use with Category II, III, or IV gas burning appliances as defined by the National Fuel Gas Code, NFPA 54, or other appliances that result in condensation or corrosive acids on the liner of the chimney, or that create positive pressures in the