Drop Ceiling HVAC Supply Grille - For T-Bar Lay-In - 2 Coned - 24" x 24" - For 12" Vent Connection Supply Grille + Product Details Size –

+ Product Details Size – 30"w X 14"h is the size for the duct opening measurement only

+ Product Details Size – 24" x 24" with 10" collar T-Bar drop ceiling perforated return grill - metal back casing

+ Product Details Size – 18" x 20" or 20" x 18" is the size for the duct opening measurement only

+ Product Details Size - 25"w X 14"h is the size for the duct opening measurement only

Actual Front End Outer Dimensions Are 16" Width X 10" Height - SEE IN DESCRIPTION HOW TO MEASURE A GRILLE

Drop Ceiling HVAC Supply Grille - For T-Bar Lay-In - 2 Coned - 24" x 24" - For 12" Vent Connection Supply Grille + Product Details Size –+ Product Details Size 24"w X 24"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 12" 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