The Double-Wall Vent Pipe adds an extra 24" to your piping system and features a twist-lock connection for easy installation. Inner wall 304 stainless steel, outer wall paintable galvanized.
Internal spacing bead assures uniform insulating air space between pipe walls
Tested and listed by Underwriters' Laboratories, INC., in accordance with UL-641 Standard for Low Temperature Venting Systems, and applicable requirements from UL-103 Standard for Residential Type and Building Heating Appliance Chimneys
When installed according to Selkirk installation instructions, complies with National Safety Standards such as NFPA-211