T-Bar Drop Ceiling Grille - Flat Plate Plaque Diffuser - 12" x 12" - 6" Collar 6in diameter these louvers provide exceptional protection

these louvers provide exceptional protection against rain and water

actual front end outer dimensions are approximately 32 5/8" width X 20 5/8" height

angle the louvers up for efficient cooling

+ Product Details Size - 12"w X 28"h is the size for the duct opening measurement only

Exceptional Craftsmanship: Hand-inspected for quality

T-Bar Drop Ceiling Grille - Flat Plate Plaque Diffuser - 12" x 12" - 6" Collar 6in diameter these louvers provide exceptional protection+ Product Details Size 12"w X 12"h. These are specially sized to fit into all drop ceilings, also called T Bar systems. Can be hooked up with our "Butterfly Dampers" for precise airflow control. For 6" duct opening High Quality Heavy gauge all steel construction. Installation Location Ceiling. Design These Supply Diffusers with integral round necks are recommended for heating, ventilating and cooling. Round neck to square face construction results in