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Square and Slot Diffuser linear slot diffuser plenum box sizing In a recent project with very tight ceiling space, the fabricator is claiming they need 16Dx14H box for a 4 ft linear slot diffuser residential 2 Slot - Double Slot - Linear Slot Diffusers · Friendly Reminder - How to Measure your Vent Size Correctly

linear slot diffuser residential A = Slot Diffuser Neck size Note : A = Slot Diffuser Neck size Plenum Box with Insulation Plenum Box without Insulation Construction Details and Dimensions

linear slot diffuser installation detail Plenum Slot Diffusers Product details · Total Box Dimensions: L: 36 78 W: 4 58 H: 11 78 · Mouth Dimensions: L: 35 34 W: 3 14 · Entry size: 10 flex in oval shape