Macklanburg-Duncan wx001 Backer Rod for Gaps and Joints, 0.38 in. x 20 ft

Poly Foam Caulk Saver acts as a filler in large gaps before applying caulk. Insulates and cushions. Use in pavement cracks wall joints and foundations.

Features

• Fills large gaps and openings to prevent drafts.
• Provides a sound surface for caulking projects.
• Recommended for use in expansion joints in driveways and sidewalks.
• Twist multiple strands of cord together for extra large gaps.
• Easily trimmed to size with scissors.
• Material – Closed-Cell Polyethylene.
• Size – 0.38 in. x 20 ft.

– SKU: EGCS133

• M-D Building Products 71464
• Collection