The 167-MMB 04X12 is 4 inch x 12 inch 1-way air diffuser used for floor openings. The crafted modern contempo design is perfect for your decorative needs. This patented smooth glide technology ensures your dampers are quiet airflow from y central air system. Smooth glide also provides for smooth opening and closing of your back dampers. High quality product will ensures years of continuous use.

• • Easy to use smooth glide damper
• • Attractive face pattern
• • Matte black finish
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