MPQ4992 Features: * Galvanized self-seal roof flashing * Made of rust-proof, stamped 24 gauge galvanized steel * Slip easily over vent pipe - self-sealing to vent pipe surface, 40 pitch * Self-sealing elastomericic collar attached to a base of heavy gage aluminum * Collar will not crack, chip, peel or separate from aluminum * Size: 0.5""-1"" * Eliminates caulking - no sealing compound required * Absolutely leak-proof and fits most roof sizes * Accommodates all vent types such as plastic, copper, steel or cast iron * G11830 commonly used in solar applications * Case quantity: 12 Dimensions: * Dimensions: 14.5"" W x 11"" D Warranty: * 1 Year warranty