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The M&M Manufacturing 14503ATH is a 503ATH 14 Stick-On Start Collar designed for easy installation in HVAC applications. This product allows for efficient ductwork connections without the need for complex assembly. Use it to streamline your ducting projects.
This product provides a reliable solution for connecting ductwork swiftly and effectively.
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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