Description
Do it 3/8 In. x 20 Ft. Gray Backer Rod
Resilient poly foam provides efficient fill or seal for large openings. Moisture-resistant, saves on expensive caulks and sealants, lasts for years. Use to fill cement cracks, meeting joints, aluminum siding panels, door and window frames. Seals foundation bases, too.
- Fills gaps and openings to prevent drafts
- Provides a sound surface for caulking projects
- Saves on caulk usage
