M-D 71480 Backer Rod, 1/2 in Dia, 20 ft L, Polyethylene, Gray
Product Code: 8105611
Retail Price: $4.74
Description
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.