Extend your mini split installation safely and efficiently with the MRCOOL DIYCOUPLER-3858K75. Designed for both DIY installers and professionals, this kit allows reliable extension of prefilled line sets for 24K and 36K systems, ensuring proper refrigerant flow and system performance in larger spaces.
Compatible with MRCOOL VersaPro and DIY 24K–36K mini split systems, the kit includes MRCOOL w/75 Ft of Communication Wire to support longer distances between indoor and outdoor units without losing control signal integrity.
The MRCOOL 3/8" x 5/8" DIY Coupler Kit features two quick-connect couplers that maintain line set integrity and prevent refrigerant loss during installation. Its durable construction simplifies setup, ensures leak-free connections, and preserves system efficiency for long-term performance.
This extension kit is ideal for installations requiring extra line set length, providing a professional-grade solution that enhances flexibility and reliability while maintaining the quality of your MRCOOL mini split system.
Product Highlights
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3/8" & 5/8" Couplers
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Quick-connect design ensures leak-free line set extension
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75 Ft Communication Wire
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Maintains reliable control over longer distances
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Precharged Line Set Extension
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Preserves refrigerant integrity and system efficiency
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Durable Construction
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Simplifies installation and provides long-term reliability
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