LVR-1045-4-EA Extruded Aluminum Louver is designed for intake and exhaust application where protection against water infiltration is not critical. The LV1045-4-EA is well-suited for special shape applications and is available with hidden mullions for a continuous blade appearance of multiple section assemblies. Each unit is available in an array of anodized and painted finishes including custom color matching. Louver dimensions furnished approximately 1/2″ (13) undersize.