Image 8 x 8 Universal Dryer Vents Our universal glass block dryer vent is designed to use with 3” and 4” glass blocks. The vent can replace one standard size glass block in a window or wall. Exterior louvers close when the dryer is not in use. Find A Distributor Home Accessories 8 X 8 Universal Dryer Vents Dryer Vents Dryer Vents 8 x 8 Universal Dryer Vents Installation Technical Docs SGB-032 myMINIGLASS Silicone Installation System_En.pdf SGB-039 Silicone Installation - Pegasus (EN / ES) SGB-002 Mortar Install System_ES SGB-032 ProVantage Silicone Installation System.pdf SGB-002 Mortar Install System_EN View All »