Round Aluminum Air Louver 4901-IS-5

Round Aluminum Air Louver 4901-IS-5Standard Features * Lightweight Aluminum vent louver * Able to withstand wet and corrosive environments * Spring clip mounting * Easily installed using only a high grade silicon caulk * Satin Anodized finish Options * IS Insect screen * Standard Color or Designer Color Finish available on this product

Maintains horizontal airflow pattern

For evaporative coolers or central blower systems

450 Series Engineering/Performance Data

One-piece removable slide damper for off-season closure

800-495-0125

Designed for return applications and as a vented access door to equipment

Galvanized Finish

2" ADC compliant round collar with bead for ease of installation

Standard Features * Return air T-Bar lay-in filter grille for 20" x 20" duct * Removable louvered 20 gauge steel face * 20" x 20" x 1" filter (not included) * Square collar (20x20) * 2x2 panel * Seismic support holes * Soft White Options * Square to round No Labor Collar

Standard Features * T-Bar lay-in panel with hinged perforated face * Galvaneal steel 2x2 panel with seismic hangers * Spring push release for removal of perforated face * Round No Labor Collar sizes: 6-10"

Standard Features * Stamped curved blades * Field adjustable for positive throws and control of face velocities * Provides uniform air distribution across ceiling or walls * Eight air patterns * All component parts

Half-length screwdriver operated Scoop Extractor