Photo 1 of [Read First] [2 Pack] Fits 16x8 Duct Opening 3 Way Steel Air Supply Diffuser, White | Outer Dimensions: 17.75" X 9.75"

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Photo 1 of [Read First] [2 Pack] Fits 16x8 Duct Opening 3 Way Steel Air Supply Diffuser, White | Outer Dimensions: 17.75" X 9.75"Photo 2 of [Read First] [2 Pack] Fits 16x8 Duct Opening 3 Way Steel Air Supply Diffuser, White | Outer Dimensions: 17.75" X 9.75"