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EG4 Mini-Split Line Set Extension | 9k/12k AC | 24k AC/DC Accessories EG4

EG4 Mini-Split Line Set Extension | 9k/12k AC | 24k AC/DC

BY: EG4 | SKU: EG4MISPLIEX24K Availability: In Stock
$199.00
$175.00
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EG4 Mini-Split Line Set Extension | 9k/12k AC | 24k AC/DC

EG4’s Line Set Extension Kit provides an additional 16.4 (5m) of lines for your EG4 mini-split air conditioner. This line set is useful when one needs more distance than the mini-split’s included 16.4 ft. (5m) of lines can provide. The line sets included in this kit and with the EG4 mini-splits are pre-vacuumed and have Plug-N-Cool connectors. The kit also includes a set of connectors to combine the Plug-N-Cool line sets together without requiring the services of an HVAC technician.*

*3 percent loss of efficiency without the addition of refrigerant

Installing a line set extension adds volume to the system which may lead to an approximate 3% loss in efficiency per additional line set. To compensate for the added volume, a licensed HVAC technician can add refrigerant (.2 oz./ft.) to the system.

The line sets included in this kit and with the EG4 mini-splits are pre-vacuumed and have Plug-N-Cool connectors.

The line set extensions should be installed during the initial installation of the indoor and outdoor units. This line set extension kit is not intended to extend the line sets of a system that has already released refrigerant into the system by opening the refrigerant valves on the outdoor unit.

EG4 Mini-Split Line Set Extension Features

Extended Reach – Supports Longer Install Runs

Easily expands your mini split system installation range for flexibility in placement.

Compatible with Multiple Units

Engineered to fit 9k and 12k BTU AC units as well as the 24k BTU AC/DC hybrid systems.

Pre-Flared Copper Tubing – Ready for Connection

Includes pre-flared and insulated copper lines for a quick, secure installation.

Insulated for Performance – Maintains Cooling Efficiency

High-quality insulation prevents condensation and energy loss, ensuring system efficiency.

DIY & Pro-Friendly – Plug & Extend Simplicity

Designed for easy integration into your EG4 mini split setup, whether you're a homeowner or an HVAC tech.

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EG4 Mini-Split Line Set Extension Applications

  • Extend Indoor-to-Outdoor Distance – Ideal when units are installed farther apart than standard line sets allow.
  • Retrofit or Relocate Units – Perfect for moving or upgrading existing EG4 mini split systems.
  • Custom Installations – Supports longer horizontal or vertical line runs in unique setups.
  • RV, Cabin, or Workshop Use – Great for mobile or off-grid climate control solutions.
  • Professional Installations – A reliable option for HVAC or solar cooling projects.
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What's Included

Everything you need is included with your product.

  • EG4 Mini-Split Line Set Extension | 9k/12k AC | 24k AC/DC
  • User Manual

Frequently-Asked Questions

Is this extension compatible with both AC and AC/DC mini split systems?

Yes, it works with EG4 AC units (9k/12k) and AC/DC hybrid models (24k BTU).

Does this kit come pre-flared and ready to use?

Yes, it includes pre-flared copper lines for a simple plug-and-connect installation.

Can I use this if my units are more than 25 feet apart?

Absolutely. This extension is designed specifically for longer line run needs.

Do I need a vacuum pump for installation?

Yes, a vacuum pump is recommended to remove air and moisture from the system before charging.

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