6" DuraVent DuraLiner Slip Connector and Hanger 6DLR-SCH This slip connector and hanger is used with a transition anchor plate to connect DuraLiner to DuraTech DuraPlus or DuraTech Premium chimney. Approved for most fuel types 430-alloy stainless steel inner wall 2" clearance to combustibles ThermalTech blanket insulation eliminates hot spots Twist-lock connections for strong secure fits Able to vent large fireplaces and building heating appliances Clean smooth exterior finish .016†304 stainless steel inner liner. Rigid relining pipe: double-walled with 304 stainless steel inner and galvalume outer. Factory insulated between inner and outer walls.