3/8″ × 5/8″ mini-split line set
Pre-insulated ACR copper, flared and ready to install. Fits 24k–36k BTU systems. Available in 16 ft and 25 ft.
Preorder now — ships with our first run
Preorder opening soon. Want first dibs or have a question? Contact us.
- Line size3/8″ liquid × 5/8″ suction
- Lengths16 ft, 25 ft
- TubingC12200 ACR copper, pre-flared
- InsulationClosed-cell, both lines
- Fits24k–36k BTU mini-splits
- RefrigerantR-410A or R-454B compatible
About this line set
A 3/8″ × 5/8″ pre-insulated copper line set for the larger single-zone mini-splits — 24,000 to 36,000 BTU. This is the pair most big wall-mounts step up to: a Mitsubishi MSZ-GL24NA, a 24k+ Fujitsu, or a 2–3 ton unit from Gree, Senville, or Pioneer all call for 3/8″ liquid and 5/8″ suction. The ACR copper arrives flared and insulated on both lines, ready to route and connect on a standard flared system. Always confirm the correct diameter and length for your unit with the size calculator and your installation manual before buying.
What's in the box
- One insulated line set (3/8″ liquid + 5/8″ suction), in your chosen length
- Pre-flared ends
- Insulation on both lines
Good to know
This is a standard flared line set — see flared vs. quick-connect if you need a no-vacuum DIY option, and our install guide for step-by-step connection. The copper works with R-410A or R-454B systems; match your tools and charge to your unit's refrigerant. Larger 5/8″ suction lines are stiffer than the small sizes — plan gentle bends and use a line set cover sized for the bigger bundle.