Profile: Airguide Mfg., LLC specializes in the production of grilles, registers and diffusers for the HVAC industry. We offer opposed blade dampers, equalizing grid & air straightener as well as duct mounted air extractor. Our air slot diffuser is constructed from 6063 extruded aluminum, which offers excellent static pressure, throw and sound characteristics. Our frames and blades are 6063 extruded aluminum alloy with 200-R1 satin anodized finish.