24" x 24" Drop Ceiling HVAC Return Grille - For T-Bar Lay-In - PERFORATED - INSULATED flat stamped steel so you are not left

so you are not left with much waste

Actual Filter Size – 29 3/4"w x 9 3/4" x 1"

actual front end outer dimensions are approximately 22 5/8" width X 12 5/8" height

The first number in a grille size

24" x 24" Drop Ceiling HVAC Return Grille - For T-Bar Lay-In - PERFORATED - INSULATED flat stamped steel so you are not leftPowder Coat Finish Smooth, Shiny, Scratch Resistant, Beautiful. Looks Like It Was Just Waxed Quality Packaging Carefully Shrink Wrapped with Cardboard Backing to Prevent Damage in Shipment Smooth Surface Edges Run Your Fingers Across The Surface To Feel The Smoothness Easy Unrestricted Air Flow For Your HVAC System Pack of 4 Pieces Perforated steel grille for return air flow, sized to fit into all drop ceiling system, also referred to as T Bar or Lay