Photo 1 of Built Industrial 3 Pack Air Vent Register, Floor Vent Covers 4x12 with Damper for HVAC Systems with 11.5 x 3.5 in Opening (White)

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Photo 1 of Built Industrial 3 Pack Air Vent Register, Floor Vent Covers 4x12 with Damper for HVAC Systems with 11.5 x 3.5 in Opening (White)Photo 2 of Built Industrial 3 Pack Air Vent Register, Floor Vent Covers 4x12 with Damper for HVAC Systems with 11.5 x 3.5 in Opening (White)