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Amazon [amazon.com] has 10 Ft. Frost King Foam Tape for $1.77. Shipping is free w/ Prime or on $35+.

Walmart [walmart.com] also has Frost King Self-Stick Rubber Foam Weatherseal Tape (Black, 3/8″ x 5/16″ x 10′, R538H) for $1.77. Shipping is free w/ Walmart+ (free 30-day trial [walmart.com]) or on orders of $35+.