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Enhance your air distribution network with M&M Manufacturing's 645R61288, a 12-inch 45-degree insulated regular box, featuring an adjustable collar designed for optimal efficiency in air distribution systems.
This duct collar is constructed to support professional HVAC installations, ensuring improved air quality and system efficiency.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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