https://www.mccoys.com/shop/p/3540077-052303-26/frost-king-c21h-caulk-saver-38-in-dia-20-ft-l-polyfoam-gray
C21H Caulk Saver, 3/8 in Dia, 20 ft L, Polyfoam, Gray
Sku: 3540077-052303-26
$3.80
128 Available at
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Caulk Backer Rods:Frost King 20 Ft Gray
Poly foam caulk savers are used behind caulks to fill wide cracks and save on caulk.
- Reduces the amount of caulk you need to fill or seal large openings
- Made of durable, resilient poly foam, it works with virtually every type of caulk and sealant
Length
20
Diameter
3/8
Material
Poly Foam
Color
Gray