OSI GS121 1939148 Series Gutter and Seam Sealant, White, Slight Solvent Odor/Scent, Pack of 12

For all gutters, downspouts, heating and AC ducts and other seams in sheet metal surfaces. Cartridge has convenient 3 in spout. Use to seal seams, joints and cracks.
Unit: EA
UPC: 028756959977
Model Number: 1939148