Plastic Egg Crate T-Bar Filter Grille

• For lay-in return air usage
• Construction: Polystyrene (plastic) core; Steel frame
• 1/2” x 1/2” x 1/2” core design
• R6 fiberglass plenum option
• Uses standard 20" x 20" x 1" filter (not included)
• White finish
• Made in the U.S.A.