Preorder · Coming soon

1/4″ × 1/2″ mini-split line set

Pre-insulated ACR copper, flared and ready to install. Fits common 12k–18k BTU systems. Available in 16 ft and 25 ft.

Pricing coming soon

Preorder now — ships with our first run

Preorder opening soon. Want first dibs or have a question? Contact us.

  • Line size1/4″ liquid × 1/2″ suction
  • Lengths16 ft, 25 ft
  • TubingC12200 ACR copper, pre-flared
  • InsulationClosed-cell, both lines
  • FitsCommon 12k–18k BTU mini-splits
  • RefrigerantR-410A or R-454B compatible

About this line set

A 1/4″ × 1/2″ pre-insulated copper line set sized for mid-range single-zone mini-splits — typically 12,000 to 18,000 BTU. 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 (1/4″ liquid + 1/2″ 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.