1-1/4 to 1-1/2" Galvanized Self-Seal Roof Flashings - 24 Gauge Roof Flashings eliminates the need for caulking. Features: Made of rust-proof, stamped 24 gauge galvanized steel. Roof flashings slip easily over vent pipe - self-sealing to vent pipe surface, 40° pitch. Self-sealing elastomeric collar attached to a base of heavy gage aluminum. Collar will not crack, chip, peel or separate from aluminum. Eliminates caulking - no sealing compound required. Absolutely leak-proof & fits most roof sizes Accommodates all vent types - ie: plastic, copper, steel or cast iron G11830 commonly used in Solar Applications Specification: Size: 1-1/4 In. Length: 12.5 In. Width: 9 In. Item weight: 1 lbs.