American Louver durable cube core return air grilles. Aluminum construction with a strong frame and core. For T-Bar mounting.

• Cubed core size: 1/2" x 1/2" x 1/2"
• Sealed corner seams
• Micro-welded neck corners
• Eggcrate locked in frame channel, no rattling, squeaking, or vibrations
• White powder-coated finish
• No filter mount