Armacell
Armacell 1" Closed Cell Backer Rod/Crack Filler (25 ft)
Amazon Price as of 02/16/2025 06:20 GMT+00:00
$9.00
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average price $10
$1 cheaper than average
$9.75
$11.25
Product Description
Backer rod is important when sealing large gaps. It allows caulk to span a gap without ripping loose. In the example above backer rod is used where the radon pipe enters the floor before caulk is applied. 1" backer rod is perfect for filling gaps 3/4" to 1-1/8" wide. Sold in 25 foot lengths.
• Fill large cracks
• Save caulk
• Keep caulk from ripping loose
• Fill large s
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