R6 Insulated Plenum Box - 1-Slot - Fiberglass HVAC Plenum | Cryptic Air Size:48x2 so all you see is

so all you see is a clean slot where the air comes out

It sets into the drywall with no visible frame and no screws

Cryptic Air plenum boxes are built to pair seamlessly with our 1-slot linear slot diffusers

Also called a triple-slot diffuser plenum

R6 Insulated Plenum Box for 1-Slot (Single-Slot) Linear Diffusers

R6 Insulated Plenum Box - 1-Slot - Fiberglass HVAC Plenum | Cryptic Air Size:48x2 so all you see isR6 Insulated Plenum Box for 1 Slot (Single Slot) Linear Diffusers Cryptic Air plenum boxes are built to pair seamlessly with our 1 slot linear slot diffusers, delivering optimal airflow performance, quiet operation, and a precise fit while leaving you full flexibility on the job site. Constructed from R6 fiberglass duct board for excellent insulation, reduced condensation, lower noise, and improved system efficiency. Why it works: Matched to your