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Backer Rod for Gaps and Joints, Black Rubber Caulk Saver Weather Stripping Concrete Filler Rope (1/4in Diameter x 9.8ft Length)
$0.8$1.48-45.95%
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Premium Black Rubber Backer Rod – Superior Gap & Joint Filler
Ultra-flexible closed-cell rubber construction ensures airtight, water-resistant sealing for gaps up to 1/4" diameter. High-density foam resists mold, UV rays, and extreme temperatures (-40°F to 180°F). Precision-cut 9.8ft length with smooth surface for seamless caulk adhesion. Ideal for concrete expansion joints, window/door weather stripping, and HVAC duct insulation. Non-absorbent design prevents rotting—perfect for outdoor pavements, basements, and marine applications. Sold in bulk at unbeatable wholesale pricing for contractors and DIY professionals.
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