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Caulk Backer Rod

P1090393.JPG
P1090393.JPG

Caulk Backer Rod

4.25

To be used in conjunction with caulking. Insert caulk backer rod into gaps prior to caulking for a tight seal. Great for sealing around vent openings, pipe collars, ductwork, and foundations. Made of moisture-resistant poly foam. Measures 3/8'' thick and 20' long. 

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