SGI 18s, Sight glass, Solder, ODF, 18 mm, Solder, ODF, 18 mm (014-0045)

Model ESD-435X is a Florida Product Approved stationary drainable blade extruded aluminum louver designed to protect air intake and exhaust openings in exterior walls. Model ESD-435X is AMCA 540 Listed for Wind-Borne Debris when selected as such and is approved for use in Florida’s High Velocity Hurricane Zone.

4-inch depth

56% free area (4 ft. x 4 ft.)

989 fpm free area velocity at the beginning point of water penetration