The 1st Glass Block Vinyl Frame Replacement Window. Four different ways to install into a masonry/brick or wood opening. Glass Block windows are fabricated with adhesive by Robot. Better than mortar or conventional silicone. Nailing Flange Kit included.
- Replaceable screen with frame on outside
- Real glass block
- Glass in vent, not plastic
- Nail from the inside, or the outside, with mortar or silicone
- Can be installed at any temperature when using nailing flange and sealing with silicone