M-D 71506 Backer Rod, 5/8 in Dia, 20 ft L, Polyethylene, Gray

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 in. Prevents 3-point bonding.

Manufacturer: M-D
Model Number: 71506
UPC: 043374715064