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The SOUTHWARK METAL ATSD4 is an innovatively designed air-tite collar crafted for optimal functionality in HVAC systems. This 4-inch collar is made from robust 28 gauge hot dipped galvanized steel, ensuring durability and reliability.
The ATSD4 model emphasizes ease of use and installation, combining practicality with advanced design to streamline HVAC operations and maintenance.
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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