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Frost King C21H Caulk Saver Frost King C21H Caulk Saver, 3/8 in W x 20 ft L, Polyfoam , Gray

Poly foam caulk savers are used behind caulks to fill wide cracks and save on caulk.

Our Price: $3.29
M-D 71464 Backer Rod M-D 71464 Backer Rod, 3/8 in Dia X 20 ft L, Polyethylene, Grey

Non-absorbent, closed-cell polyethylene pre-caulking material helps repel moisture. Use before caulking to fill gaps and openings larger than 1/2" x 1/2". Prevents 3-point bonding.

Our Price: $4.09
Frost King C22H Caulk Saver Frost King C22H Caulk Saver, 1/2 in W x 20 ft L, Polyfoam , Gray

Poly foam caulk savers are used behind caulks to fill wide cracks and save on caulk.

Our Price: $4.09
M-D 71480 Caulk Backer Rods M-D 71480 Caulk Backer Rods, For Gaps & Joints, 1/2 In. x 20 Ft.

Non-absorbent, closed-cell polyethylene pre-caulking material helps repel moisture. Use before caulking to fill gaps and openings larger than 1/2" x 1/2". Prevents 3-point bonding.

Our Price: $4.49
Frost King C23H Caulk Saver Frost King C23H Caulk Saver, 5/8 in W x 20 ft L, Polyfoam , Gray

Poly foam caulk savers are used behind caulks to fill wide cracks and save on caulk.

Our Price: $4.69
M-D 71506 Backer Rod M-D 71506 Backer Rod, 5/8 in Dia X 20 ft L, Polyethylene, Grey

Non-absorbent, closed-cell polyethylene pre-caulking material helps repel moisture. Use before caulking to fill gaps and openings larger than 1/2" x 1/2". Prevents 3-point bonding.

Our Price: $4.79
Sika 108130 Caulk Backer Rods Sika Corporation 108130/MD65318 Closed Cell Backer Rod, Gray

Use to partially fill deep cracks or joints before applying sealant. 3/4" closed cell. To be applied to 1/2 in. width joints and below.

Our Price: $6.69
Quikrete 6917-42 Backer Rod Quikrete 6917-42 Backer Rod, 3/4 in W x 20 ft L, Polyurethane

Use to insert into a joint to control sealant depth, to create a backstop, allow proper sealant tooling, allow proper sealant wetting of the joint surfaces and use as a temporary seal.

Our Price: $7.29
Quick R BR58060 Caulk Backer Rods Quick Rod BR58060 Closed Cell Caulk Backer Rod, 5/8 in Rod 60 ft L

Use before applying caulk on new construction or remodeling. For walls, floors, trim, sidewalks, windows and doors. Closed-cell.

Our Price: $14.99
Quick R BR38120 Caulk Backer Rods Quick Rod BR38120 Closed Cell Caulk Backer Rod, 3/8 in Rod 120 ft L

Use before applying caulk on new construction or remodeling. For walls, floors, trim, sidewalks, windows and doors. Closed-cell.

Our Price: $14.99
Quick R BR78040 Caulk Backer Rods Quick Rod BR78040 Closed Cell Caulk Backer Rod, 7/8 in Rod 40 ft L

Use before applying caulk on new construction or remodeling. For walls, floors, trim, sidewalks, windows and doors. Closed-cell.

Our Price: $14.99
M-D Building Products Pro Pack Backer Rod M-D Building Products Pro Pack Backer Rod, 5/8 in W x 150 ft L

Fills gaps and openings to prevent drafts. Provides a sound surface for caulking projects.

Our Price: $34.79
M-D Building Products Pro Pack Backer Rod M-D Building Products Pro Pack Backer Rod, 1/2 in W x 250 ft L

Fills gaps and openings to prevent drafts. Provides a sound surface for caulking projects.

Our Price: $45.19
M-D Building Products Pro Pack Backer Rod M-D Building Products Pro Pack Backer Rod, 3/8 in W x 350 ft L

Fills gaps and openings to prevent drafts. Provides a sound surface for caulking projects.

Our Price: $55.99