Unbranded 100 Ft 1/4 Inch Backer Rod EPDM Rubber Caulk Saver Foam Seal Expansion Joint Filler Weather Resistant Gray

Sealing and filling backer rod designed for expansion joints, cracks, and gaps in concrete, pavement, masonry, and wall systems. Made from EPDM closed-cell rubber with flexible low-density structure, non-absorbent and temperature resistant. Total length 100 ft, diameter 1/4 inch. Helps reduce sealant usage and improves joint sealing performance before caulking. Suitable for residential and commercial use in foundations, driveways, sidewalks, doors, and windows. Includes 30 day warranty.