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The M&M Manufacturing 508S5 is a five-foot collar with sealant designed for duct pipe fittings.
This collar ensures a secure fit in duct systems, preventing air leaks and improving efficiency. It is ideal for HVAC professionals and plumbing experts.
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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