Seves 2-3/8 in. x 4 in. Glass Block Spacers (24-Piece per Bag)

Glass block mortar spacers are used in the traditional mortar method of glass block installation to keep block aligned, stable and the joints consistently even for professional looking results. Universal spacers come in 2-piece that quickly and simply snap together and work with either 3 in. or 4 in. glass block. The traditional mortar installation method components include panel reinforcing, mortar spacers, expansion foam strips and either panel anchors or vinyl U-shaped perimeter channel. All mortar installation accessories are sold separately.Works with all brands of 3 in. or 4 in. glass blockKeep glass block aligned horizontally and vertically during installation processProvide a nominal 1/4 in. mortar joint when used in mortar assembly methodsSpacer remains embedded in the glass block mortar joint, the flat alignment tab twists offSold in 24-piece bagEach spacer comes in 2-piece that easily snap togetherCan be modified for curb and wall applications