2 inch Standard Closed Cell Foam Backer Rod 252 LF per box - Joint Filler

FILL-RITE Closed-Cell Foam Backer Rod, Box of 42 units of 2-inch diameter solid closed-cell foam backer rod. Total of 252 feet., Closed-Cell

FILL-RITE 2 INCH Closed Cell Foam Backer Rod (42 units of 2 x 72) 252 Feet - Grey

1/2 inch Backer Rod, Closed Cell (Per Foot)

KOOL-ROD - Backer Rod for Cold-Applied Sealants - W. R. Meadows

KOOL-ROD - Backer Rod for Cold-Applied Sealants - W. R. Meadows

1/4 inch x 32.8ft Backer Rod for Gaps and Joints Foam Caulk Crack

Insul-Joint Expansion Joint 1/2 In x 50 ft Gray - All Sizes

M-D 0.5-in x 20-ft Closed Cell Backer Rod, Gray in the Concrete

How to Build an Insulated Cathedral Ceiling - GreenBuildingAdvisor

2 diam. x 6'L Roll Round Backer Rod

Soft Type Backer Rod is a soft, non-gassing, pliable, bi-cellular backup material for construction joints and applications that require sealants. It performs as a depth control for most known cold applied sealants and also helps sealant to assume the optimum hour-glass shape. Sealants will not adhere to it; no bond breaker is required. Soft Type Backer Rod is a round, black, extruded bi-cellular polyethylene backer rod with a water resistant outer skin.

1-1/8 inchx20' Soft Type Backer Rod for Gaps & Joints

Buy 2 Backer Rod: 2 Inch Backer 228' Box - metrosealant