This is a pre-charged copper lineset extension for EG4 mini-split systems, built for installs where the standard lineset run isn't long enough to reach your indoor unit. It adds 16 feet of 1/2" liquid and 1/4" suction line without you needing to pull a vacuum or add refrigerant on site.
Copper linesets carry refrigerant between your outdoor condenser and indoor evaporator, and diameter mismatches are one of the most common causes of failed startups on mini-split jobs. A pre-charged extension like this one is designed to let you extend an existing run without opening the system to atmosphere, which matters for both charge accuracy and moisture control. 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.
- Length: 16 feet
- Liquid line diameter: 1/2"
- Suction line diameter: 1/4"
- Charge status: Pre-charged (per manufacturer designation)
- Does NOT fit mini-split systems that specify liquid/suction diameters other than 1/2" and 1/4" — verify your system's required line sizes before ordering.
- Pre-charged construction reduces on-site vacuum/charging steps for the added run length.
- Matched 1/2" liquid and 1/4" suction diameters keep flow characteristics consistent with the primary lineset.
- 16-foot length gives you added reach for indoor units mounted farther from the outdoor condenser.
- Copper construction is standard for mini-split refrigerant lines carrying R410A/R32-class refrigerants.
| Spec | Value | Unit |
|---|---|---|
| Length | 16 | ft |
| Liquid Line Diameter | 1/2 | in |
| Suction Line Diameter | 1/4 | in |
| Charge Status | Pre-Charged | — |
Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.
- Fits: EG4 mini-split systems requiring a 16 ft lineset extension with 1/2" liquid and 1/4" suction line diameters.
- Does NOT fit: EG4 or other mini-split systems calling for liquid/suction diameters other than 1/2" and 1/4".
- Confirm your indoor and outdoor unit's specified line diameters against this listing before purchase — mismatched diameters will prevent proper flare connection and charge balance.
| Item | Detail |
|---|---|
| Refrigerant Handling | Follow EPA Section 608 requirements for refrigerant recovery, evacuation, and leak testing during installation |
| Material | Copper lineset |
FAQ
What size are the liquid and suction lines on this extension set?
This extension set uses a 1/2" liquid line and a 1/4" suction line, running 16 feet in length.
Is this lineset pre-charged with refrigerant?
Yes. It ships pre-charged, per the manufacturer designation "Pre-Charged." Confirm your system's total run-length and diameter requirements against your unit's specifications before ordering.
Will this fit any EG4 mini-split system?
It fits EG4 mini-split systems that call for a 1/2" liquid line and 1/4" suction line diameter. It will NOT fit systems specifying different line diameters.
Do I need to pull a vacuum before using this extension?
[NEEDS VERIFICATION] - the manufacturer data provided does not specify vacuum/evacuation procedure details for this extension set. Refer to the Resources tab for the full installation procedure.
Warranty & Registration: [NEEDS VERIFICATION] - manufacturer warranty terms for this specific lineset extension were not included in the provided data. Refer to the "Resources (System Manuals and Warranty)" Tab above for manufacturer warranty details, or contact us before you order if you need this confirmed in writing.
