SELKIRK 104460 TYPE "B" GAS VENT GALVINIZED 4-INCH PIPE

SELKIRK 104460 - TYPE "B" GAS VENT GALVINIZED 4-INCH PIPE COLLAR - 4", 4RV-GC, GALVANIZED PIPE COLLAR, ROUND TYPE B GAS VENT. ROUND GAS VENT DOUBLE WALL CONSTRUTION WITH IT'S BUILT-IN AIR SPACE, PROVIDES PERMANENT INSULATION AND KEEPS THE INNER PIPE HOT AND OUTER RELATIVELY COOL PROVIDED A DECROATIVE AND FINISHED APPERANCE PIPE COLLAR ALSO ACTS AS A FIRESTOP UNDERWRITERS LABOTORIES UL 441 AND NATIONAL FIRE PROTECTION AGENCY NFPA 54 AND NFPA 211 VENTING GAS FIRED APPLIANCES, WATER HEATERS, FURNACES, STOVES, ETC. LOCKTAB-AN ALTERNATIVE METHOD TO SECURE PIPE WHEEN REQUIRED BY LOCAL CODE. OUTER MATERIAL 28 GAUGE GALVINIZED STEEL INNER LINER IS ALUMINUM CHECK APPL - EQUAL TO 790279