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DIY Line Sets R-454B
MRCOOL® R-454B DIY line sets and couplers — pre-charged refrigerant line sets for extending or replacing the included line set on DIY 5th Gen, EasyPro, and DIY Select systems. Available in 16ft to 50ft in three size options. DIY Pro Cable versions include the communication wire needed for EZ Pro compatible systems.
Line Set Size Guide
| Size | Use With | Lengths Available |
|---|---|---|
| 1/4 x 3/8 | 6K, 9K, 12K indoor units | 16ft, 25ft, 35ft, 50ft |
| 1/4 x 1/2 | 18K indoor units | 16ft, 25ft, 35ft, 50ft |
| 3/8 x 5/8 | 24K and 36K indoor units | 16ft, 25ft, 35ft, 50ft |
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