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VEVOR 25ft Mini Split Line Set, 3/8” & 5/8” OD AC Copper Tubing Pipe, 3/8 White PE Thickened Insulated Coil with Flared Nuts, Rich Fittings, for Mini Split Air Conditioner HVAC or Heat Pump System

VEVOR 25ft Mini Split Line Set Length for Extended HVAC Reach

The VEVOR 25ft mini split line set is a full-length refrigerant line set for installations where the indoor and outdoor units are far apart. With a continuous 25-foot run, installers can route the line set through walls, ceilings, crawl spaces, or exterior paths without cutting or adding extensions. This helps keep the layout clean and suits many typical residential and some light commercial installations.

Using a single uninterrupted length reduces the number of joints needed in the system. Fewer joints reduce the risk of connection-related problems and help maintain a consistent flow of refrigerant during operation. This length also provides flexibility during placement, making it easier to adapt to site-specific layouts without sacrificing performance.

3/8 Inch Liquid Line Diameter for Optimal Refrigerant Flow

The liquid line in this 25ft mini split line set is 3/8-inch in diameter, a common size for mini split air conditioners. The purpose of this diameter is to allow liquid refrigerant to flow easily from the outdoor condenser to the indoor evaporator while maintaining steady pressure.

The 3/8-inch liquid line helps maintain appropriate refrigerant flow and pressure within the system. Its small size makes it easy to route during installation, and it maintains sufficient internal capacity to deliver refrigerant consistently in a range of operating conditions.

5/8 Inch Suction Line Diameter for Efficient Vapor Return

The suction line is 5/8 inch in diameter and designed to return low-pressure vaporized refrigerant to the compressor. This width helps the vapor move properly, which is important for the system and the compressor to work well.

A correctly sized suction line helps keep balanced pressure throughout the system. The 5/8-inch diameter provides adequate cross‑sectional area for refrigerant vapor to return to the compressor, enabling efficient heating and cooling across a wide range of system capacities.

Thickened 3/8 Inch PE Insulation for Superior Thermal Protection

There is 3/8-inch thick polyethylene insulation around the refrigerant lines. This insulation helps maintain refrigerant temperature stability as it moves between indoor and outdoor units by reducing heat transfer between the refrigerant and the surrounding air.

In addition to thermal control, the insulation protects the copper tubing from surface wear and condensation during installation and operation. This supports stable operation and helps maintain system efficiency.

Flared Nuts Included for Reliable Connections

The flared nuts on both the liquid and suction lines of this 25ft mini split line set are already in place. With these flared ends, you can mechanically join compatible mini-split units without brazing or welding.

When properly tightened, the flared shape creates a tight seal, helping to reduce the likelihood of refrigerant leakage when correctly installed. This connection method speeds up installation with common hand tools and makes the process easier for both professionals and DIY users.

Copper Tubing Material for High Corrosion Resistance and Longevity

The line set is made of copper tubing, which is often used in HVAC systems because it is mechanically strong and compatible with common HVAC refrigerants. Copper can be used for a long time in air conditioning and heat pump systems because it withstands typical system pressures without degrading.

During installation, the tubing bends smoothly while keeping the same internal measurements. As a result, precise routing is possible without damaging the pipe walls, ensuring long-lasting performance.

25ft Mini Split Line Set With Rich Fittings Kit 

The package includes a fittings kit compatible with most mini-split installations. These parts are the right size to fit the copper lines that come with the kit and the normal system connection points.

The fittings that come with the kit mean you don't have to buy extra items during installation. This makes it easier for installers to connect systems quickly and helps ensure that all included parts work properly together.

Flexible Design for Easy Bending and Routing

The line set's copper tubing is designed to bend in a controlled manner during installation. This flexibility allows routing through tight areas, corners, and around structural obstacles, often without excessive force or specialized tools.

Once the tubing is shaped, it stays that way, so the fitting layout stays stable. This reduces the stress on connection points and keeps the routing path in the system clean and well-organized.

White PE Insulation Color for Aesthetic and UV-Resistant Appeal

The line set features white polyethylene insulation, which gives it a clean, neutral look. In visible areas, this lets the lines blend into interior walls or exterior surfaces.

The light-colored insulation helps keep the surface from overheating by reflecting sunlight. It also doesn't fade when exposed to UV light, so you can leave it outside for a long time and still maintain its look and protective qualities.