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The M&M Manufacturing 7503ATH 503ATH 7 Stick-On Start Collar is designed for HVAC duct work. This product aids in the effective attachment of HVAC ducts to ensure proper airflow.
This start collar is essential for HVAC installations, providing a secure connection between ducts and vents.
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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