4 N/CAULK FLASHING ROOF FLASHING - NO CAULK 12"X16" PRIME GALVANIZED PLATE WITH NEOPRENE COLLAR BONDED TO PIPE SIZE = 4" - ONE-PIECE CONSTRUCTION OF BASE AND COLLAR BASE IS MADE OF 24 GAUGE GALVANIZED STEEL COLLAR IS MADE OF AN ELASTOMETRIC COMPOUND FLASHING FITS UP TO 45 DEGREES FOR PLASTIC, CAST IRON, OR GALVANIZED PIPE