Ceiling Grille - 3 Cone Step Down Diffuser - 12" x 12" - 6" Collar 6in diameter + Product Details Size -

+ Product Details Size - 12"w X 36"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 26 5/8" width X 30 5/8" height

+ Product Details Size - 32"w X 26"h is the size for the duct opening measurement only

+ Product Details

Filter Size - 13

Ceiling Grille - 3 Cone Step Down Diffuser - 12" x 12" - 6" Collar 6in diameter + Product Details Size -+ Product Details Size 12"w X 12"h. These are specially sized to fit into all drop ceilings, 24"x 24", also called T Bar systems. Can be hooked up with our "Butterfly Dampers" for precise airflow control. For 6" Round Duct Opening Spiral or Flex High Quality No sharp surface edges. Just run your finger along the edge of the top plate and youll find a smooth finished surface. Installation Location Ceiling. Design Easy unrestricted air flow for your