4'x4' Concentric Diffuser for Rooftop Unit HVAC

Fits a 48" by 48" ceiling opening. There are (2) 18" supply duct connections and (2) 18" return duct connections on the top. 1" flange around it on all sides. Designed for 4000CFM. Can be used with 7.5 ton, 8.5 ton, or 10 ton rooftop unit.

Dimensions: 47.5" x 47.5" x 24.0" (LxWxH)
Brand: Curbs Plus
Model: CDR10

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$1000 retail, I'd take $300 for it. This item was installed, but removed and never used.

You can find the specs on the Curbs Plus website.