Airtex TS8021 Fuel Tank Seal Airtex tank seals are made of advanced polymers that protect against leaks and contamination Unique polymeric formula for life-long elasticity and superior performance with today's harsh fuel blends Always replace the tank seal as a part of in-tank fuel pump inspection and/or replacement 100 percent tested throughout the entire manufacturing process for worry free, out-of-the-box performance Limited 1 Year Warranty