BUILDMART - 48" Plenum Box for [48" Linear Slot Diffuser - 2 Slot - Double Slot] Premium Insulated Plenum Box for Heating and Cooling - Texas Buildmart

Galvanized sheet metal Plenum Box with foam insulation, ideal for Texas Buildmart 48" 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 48" Lineal Slot Diffuser - 2 Slot Galvanized sheet metal Plenum Box with foam insulation Total Box Dimensions: L: 48 3/4" W: 4 3/4" H: 11 7/8" Mouth Dimensions: L: 47 1/4" W: 3 7/16" Entry size: 2 entries of 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 We recommend using a "Y" shaped splitter to supply your plenum box with an even amount of airflow through your diffuser.    Here's a link to the Diffuser that fits this Plenum Box: 48" Linear Slot Diffuser - 2 Slot - Double Slot Linear Diffuser - Texas Buildmart - Modern AC Vent Covers for Ceilings, Walls & Floors - Commercial Grade HVAC Registers, Grilles & Vents - Home Decor & Wall Decor for Amazon Home       Here's a link to the Diffuser that fits this Plenum Box: 48" Linear Slot Diffuser - 2 Slot - Double Slot Linear Diffuser - Texas Buildmart - Modern AC Vent Covers for Ceilings, Walls & Floors - Commercial Grade HVAC Registers, Grilles & Vents - Home Decor & Wall Decor for Amazon Home