280PCS Copper Sealing Washer Assortment Kit, Complete Red Copper Flat Gasket Set for Heavy-Duty Automotive, Marine & Industrial Sealing
280PCS all-inclusive copper sealing washer assortment kit, featuring 12 comprehensive sizes for heavy-duty automotive brake systems, marine engine overhauls, and industrial hydraulic maintenance. Made from 99.9% pure red copper, these premium gaskets deliver exceptional ductility, heat resistance, and saltwater corrosion protection, ensuring a tight, leak-proof seal even on extreme-wear surfaces. The large, reinforced storage box with labeled compartments keeps sizes organized, making it ideal for fleet managers, marine technicians, and industrial maintenance teams.