84x4 R6 Insulated Plenum Box - 2-Slot - Fiberglass HVAC Plenum | Cryptic Air

The Cryptic Air 84x4 R6 insulated plenum box measures 84 inches long by 4 inches wide and is built to pair with the 2-slot linear slot diffuser. R6 fiberglass duct board controls condensation, lowers noise, and keeps the run efficient. Cut a duct collar in any size, anywhere on the box. Matched to your diffuser. Sized based on your diffuser order, no guesswork at install. Flexible duct connection. Cut and install a collar in any size, anywhere on the box. Optimized airflow. Maintains proper pressure and even air distribution. Quiet operation. Insulated interior reduces turbulence and lowers noise. Condensation control. R6 fiberglass reduces sweating and temperature transfer. Clean professional install. Front metal lip for secure drywall connection. Pairs with any Cryptic Air 2-slot diffuser at 84 inches. Need a size we do not stock? Custom sizing is included at no extra charge. Send your dimensions and our HVAC team will match them exactly, or call 786-629-9699. Note: Fiberglass material. Use gloves, mask, and proper protection when handling or cutting. May cause skin or respiratory irritation.