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3-in thick glass block is ideal for windows, especially basement windows where improved security, privacy, enhanced thermal efficiency and noise reduction is desired
Nominal 8-in x 8-in x 3-in size glass block may be combined with other 3-in glass blocks, the 3-in thick hopper air vent, or the 3-in thick dryer vent to make your own window
For use with silicone or mortar assembly methods