This line extension set lets you extend the factory lineset run on your EG4 mini-split system when the standard length won't reach your outdoor unit placement. It's built for installers and DIY owners who need extra reach without splicing mismatched copper.
EG4 builds its mini-split accessories to pair directly with its own 9K/12K and 12K AC/DC line of systems, which matters when you're trying to avoid pipe-diameter mismatches at the flare joints. Note: If you would like to review the manufacturer Product Specifications, Warranty, Brochure, etc., for this system, please refer to the "Resources (System Manuals and Warranty)" Tab above on this page.
Critical Fitment & Requirements
- Designed for use with EG4 9K/12K BTU mini-split units and EG4 12K AC/DC mini-split units.
- Exact liquid and suction line diameters: [NEEDS VERIFICATION] — not provided in manufacturer data.
- Exact extension length (ft): [NEEDS VERIFICATION] — not provided in manufacturer data.
- NOT confirmed for EG4 24K BTU or larger mini-split systems.
- NOT confirmed for use with non-EG4 brand mini-split condensers or air handlers.
Key Benefits
- Purpose-matched to EG4's 9K/12K and 12K AC/DC mini-split lineup, reducing guesswork on a compatible extension.
- Lets you reposition the outdoor condenser further from the indoor head without re-piping the entire run from scratch.
- Sold under the EG4 brand alongside the rest of your system, simplifying warranty and support conversations.
| Spec | Value | Unit |
|---|---|---|
| Brand | EG4 | — |
| SKU / MPN | EG4MISPLIEX12K | — |
| Compatible Systems | 9K/12K, 12K AC/DC | BTU class |
| Price | 164.99 | USD |
Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.
Compatibility & Fitment
- Fits: EG4 9K/12K BTU mini-split units.
- Fits: EG4 12K AC/DC mini-split units.
- Does NOT have confirmed fitment for EG4 24K BTU or larger systems.
- Does NOT fit other manufacturers' mini-split linesets — do not assume cross-brand compatibility.
| Item | Guidance |
|---|---|
| Refrigerant Handling | Follow EPA Section 608 practices when opening or extending any refrigerant lineset. |
| Material Safety | [NEEDS VERIFICATION] — line/insulation material not specified in manufacturer data. |
FAQ
What size are the liquid and suction lines on this extension set?
Liquid and suction line diameters were not specified in the manufacturer data provided for this SKU. [NEEDS VERIFICATION] Please refer to the Resources tab or contact us before ordering if exact diameter match is critical for your run.
Is this extension set compatible with my EG4 mini-split?
This set is listed for EG4 9K/12K and 12K AC/DC mini-split units. It is not confirmed for EG4 24K systems or other brands. Check your unit's model number against EG4 documentation before ordering.
How long is this line extension?
Exact extension length in feet was not included in the manufacturer data provided. [NEEDS VERIFICATION]
Does this include flare fittings or communication wire?
The manufacturer data provided did not specify included components such as flare fittings, insulation, or communication wire. [NEEDS VERIFICATION] Refer to the Resources (System Manuals and Warranty) tab for the full parts list.
Warranty & Registration
Manufacturer warranty terms for this specific SKU were not included in the data provided. [NEEDS VERIFICATION] Refer to the "Resources (System Manuals and Warranty)" Tab above on this page for EG4's current published warranty terms, or contact us before you order if warranty coverage affects your purchase decision — we always reply back.
