5" STAINLESS STEEL SAF-T VENT SEAL STORM COLLAR, FOR USE WITH THE TALL CONE FLASHING(SOLD SEPARATELY) OR OTHER ROOF FLASHINGS TO PROVIDE SUPPORT TO VERTICAL INSTALLATIONS, TYPE 304 STAINLESS STEEL, SHOULD NOT BE INSTALLED IN THE DIRECT PATH OF FLUE GASES, MAY BE TIGHTENED AND SEALED AROUND THE VENT TO PREVENT WATER FROM ENTERING THE BUILDING, UL LISTED, DIMS:1 1/2"H X 11 3/4"OD X 5 5/16"ID, WEIGHT:10 OZ, BULK, MADE IN USA.