Drop Ceiling HVAC Supply Grille - For T-Bar Lay-In - 3 Coned - 24" x 24" - For 8" Vent Connection - Black w22h22 Actual Filter Size – 27

Actual Filter Size – 27 3/4"w x 33 3/4" x 1"

+ Product Details Size – 36"w X 6"h is the size for the duct opening measurement only

+ Product Details Size – 20"w X 20"h is the size for the duct opening measurement only

Performance – High diffusion induction rates result in rapid temperature and velocity equalization of the mixed air mass well above the zone of occupancy

allowing you to take control of indoor air circulation without complications

Drop Ceiling HVAC Supply Grille - For T-Bar Lay-In - 3 Coned - 24" x 24" - For 8" Vent Connection - Black w22h22 Actual Filter Size – 27Easy Unrestricted Air Flow For Your HVAC System See our separate listing for Butterfly Dmaper to Control Airflow Optional Butterfly Damper Available At Asin: B007CNEL1W For 8" Round Duct Opening Spiral or Flex Q: Why BLACK? A: Black Grilles Always Look Sharp And Never Show DIrt & Dust Marks Drop Ceiling HVAC Supply Grille For T Bar Lay In 3 Coned 24" x 24" For 8" Vent Connection Black These are specially sized to fit into all drop ceilings, 24"x 24",