https://www.mccoys.com/shop/p/4962221-052303-26/m-d-71550-backer-rod-38-in-dia-350-ft-l-polyethylene-gray
71550 Backer Rod, 3/8 in Dia, 350 ft L, Polyethylene, Gray
Sku: 4962221-052303-26
$38.99
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Caulk Backer Rods:M-D 350 Ft Gray
Fills gaps and openings to prevent drafts. Provides a sound surface for caulking projects.
Length
350
Diameter
3/8
Material
Polyethylene
Color
Gray