Galvanized sheet metal Plenum Box with foam insulation, ideal for Texas Buildmart 60" 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 60" Lineal Slot Diffuser - 2 Slot Galvanized sheet metal Plenum Box with foam insulation Total Box Dimensions: L: 60 1/2" W: 4 9/16" H: 11 7/8" Mouth Dimensions: L: 59 3/8" W: 3 5/16" 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: 60" 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: 60" 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: 60" 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
![BUILDMART - 60" Plenum Box for [60" Linear Slot Diffuser - 2 Slot - Double Slot] Premium Insulated Plenum Box for Heating and Cooling - Texas Buildmart](https://cdn.shopify.com/s/files/1/0404/1847/6200/files/60Inch2SlotPlenumMain_900x_68d74a60-5f26-4ee4-842f-f459c589427c.jpg?v=1755904529&width=480)
![BUILDMART - 60" Plenum Box for [60" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box for Heating and Cooling - Texas Buildmart](https://cdn.shopify.com/s/files/1/0404/1847/6200/files/60Inch1SlotPlenumMain.jpg?v=1755904504&width=480)
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![BUILDMART - 60 Inch Plenum Box for [60 Inch Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box for Heating and Cooling - Texas Buildmart](https://cdn.shopify.com/s/files/1/0638/7656/3172/files/60Inch1SlotPlenumMain.jpg?v=1756148139&width=480)
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