Backer Rod (25 feet)
Backer rod is important when sealing large gaps. It allows caulk to span a gap without ripping loose. 1/2″ will work with 1/4″ to 5/8″ gaps. 1″ is fine for 3/4″ to 1-1/8″ gaps. 25 feet length
Backer rod is important when sealing large gaps. It allows caulk to span a gap without ripping loose. 1/2″ will work with 1/4″ to 5/8″ gaps. 1″ is fine for 3/4″ to 1-1/8″ gaps. 25 feet length