Drop Ceiling HVAC Supply Grille - For T-Bar Lay-In - 3 Coned - 24" x 24" - For 8" Vent Connection - Black sidewall Actual Filter Size – 7

Actual Filter Size – 7 3/4"w x 15 3/4" x 1"

+ Product Description Protect and secure your thermostat with this high-quality Clear Plastic Thermostat Guard

actual front end outer dimensions are approximately 17

Actual Filter Size – 21 3/4"w x 11 3/4" x 1"

+ Product Details Size – 4"w X 8"h is the size for the duct opening measurement only

Drop Ceiling HVAC Supply Grille - For T-Bar Lay-In - 3 Coned - 24" x 24" - For 8" Vent Connection - Black sidewall Actual Filter Size – 7Easy 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",