BUILDMART - 12" Plenum Box for [12" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box for Heating and Cooling

Galvanized sheet metal Plenum Box with foam insulation, ideal for Texas Buildmart 12" lineal slot diffuser. This air-distribution box attaches directly to the supply of the HVAC equipment that heats or cools the air. Connects to: 6" 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 12" Lineal Slot Diffuser - 1 Slot Galvanized sheet metal Plenum Box with foam insulation Total Box Dimensions: L: 13 3/16" W: 2 7/8" H: 11 7/8" Mouth Dimensions: L: 12" W: 1 5/8" Entry size: 6" 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 ASIN: B09K5XH4Q1   Here's a link to the Diffuser that fits this Plenum Box: 12" Linear Slot Diffuser - 1 Slot - Single Slot Linear Dif