Glass Block Vent - 18x8 Vinyl Hopper Vent

AdvantageVent - glass block vinyl hopper vents with thermal sealed glass are sure to provide the energy efficiency, light transparency, and security that you seek. Variable opening options allow you to choose the amount of air flow you get from our vents. When closed, the vents seal with the extruded bubble seal, ensuring no air comes in. Our hoppers vents are applicable for mortar or silicone installation, and will perform to the highest standard.