ProVantage Clearly Secure 3 in. Glass Block Anchors for Glass Block (5-Pack)

The mortar-free, Clearly Secure 3 in. Silicone Glass Block Installation System consists of a flat spacer which can be cut to size and used in horizontal and vertical joints, and either an anchor or vinyl perimeter channel. Spacers are positioned between each glass block and held in place with REDI2BOND glass block silicone. The Clearly Secure anchor or U-shaped perimeter channel is used to fasten the glass blocks to the project's sides, sill and header. Compatible with CLEARLY SECURE brand, 3 in. W glass...