Grout Stop is designed to prevent grout from falling through block core while maintaining a positive bond in mortar joint.
Constructed of strong,non-corrosive 1/4" square polypropylene monofilament screening. Provides improved bonding of masonry anchor in hollow block construction. Width: 2", 4", 6", 8" and 10" 100lf per roll
Polypropylene monofilament screening