BUILDMART – 18″ Plenum Box for [18″ Linear Slot Diffuser – 2 Slot – Double Slot] Premium Insulated Plenum Box for Heating and Cooling

Galvanized sheet metal Plenum Box with foam insulation, ideal for Texas Buildmart 18″ lineal slot diffuser. This air-distribution box attaches directly to the supply of the HVAC equipment that heats or cools the air. Connects to: 8″ flexible duct in oval shape. Can be used and brazed to a 4″ or 6″ wood stud. If you do not have this size flex, you can use a reducer to modify the size. Professional HVAC Installer is Recommended.

• Ideal for Texas Buildmart 18″ Lineal Slot Diffuser – 2 Slot
• Galvanized sheet metal Plenum Box with foam insulation
• Total Box Dimensions: L: 19 1/8″ W: 4 9/16″ H: 11 7/8″
• Mouth Dimensions: L: 18″ W: 3 3/8″
• Entry size: 8″ flex in oval shape
• This air-distribution box attaches directly to the supply of the HVAC equipment that heats or cools the air
• If you do not have this size flex, you can use a reducer to modify the size