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MRCOOL DIY Multi-Zone Line Set Length & Extension Guide: Sizes, Quick Couplers & Communication Wire

How long can a MRCOOL DIY line set be, and can you extend one beyond 50 feet? Learn the correct R-454B line-set sizes, 16-, 25-, 35- and 50-ft options, communication-wire requirements and how MRCOOL Quick Couplers are used to extend compatible DIY 5th Gen line sets.