25 ft 1/4" x 5/8" Mini Split Air Conditioner Installation Kit – Complete HVAC Line Set Solution

This 25 ft 1/4" x 5/8" mini split installation kit is a complete HVAC solution designed for efficient and professional air conditioner installation. It includes pre-insulated copper pipes and essential accessories, ensuring fast installation, reliable performance, and long-term durability for residential and commercial systems.

Complete Mini Split Installation Kit – Everything You Need

This all-in-one AC installation kit includes:

• 25 ft insulated copper line set (1/4" liquid + 5/8" suction line)

• Communication wire cable

• Drain hose (3m)

• Wall sleeve and cover

• Flared ends with nuts for easy connection

Designed to simplify HVAC installation, it eliminates the need to source separate components.

Key Features of 1/4" x 5/8" Mini Split Installation Kit

High-Purity Copper for Superior Performance

Made from 99.9% pure copper (ASTM B280 & C12200 compliant), ensuring excellent thermal conductivity, corrosion resistance, and long lifespan.

Pre-Flared Ends for Easy Installation

Both ends of the copper pipes are pre-flared with nuts, reducing installation time and minimizing leakage risks.

Durable Insulation Options (PE & Rubber)

Available with:

• White PE insulation (multiple thickness options)

• Black rubber insulation for enhanced flexibility

This ensures optimal thermal protection and energy efficiency.

UV & Flame-Resistant Insulation

Insulation materials meet international standards:

• ASTM E84

• UL94

• ASTM D1056

• ASTM G21

Providing fire safety and outdoor durability.

Technical Specifications

Copper Pipe Size & Length

• Liquid Line: 1/4 inch (6.35 mm)

• Suction Line: 5/8 inch (15.88 mm)

• Length: 25 ft (7.6 meters)

System Compatibility

• Suitable for 2.0–2.5 Ton systems

• Compatible with 24,000–30,000 BTU mini split air conditioners

Material & Standards

• Copper purity: 99.9%

• Standards: ASTM B280, ASTM E84, UL94

99.9% Pure Copper

Black Rubber Insulated Pipe

Flaring

Features of pipe insulation tubing:

● Pipe Insulation, Material Black Rubber, Temp Range -40 Degrees to 120 Degrees.

● The pipe insulation has a better function of moisture condensation. Insulation material is both the insulation layer and moisture-proof layer.

● There is no need to drop the water vapor permeation protective layer so that it has a better moisture condensation function.

Applications – Ideal for HVAC & Mini Split Systems

This installation kit is widely used for:

• Mini split air conditioners

• Heat pump systems

• Residential HVAC installations

• Commercial cooling systems

It ensures efficient refrigerant flow and stable system operation.

Advantages of Using a Complete Installation Kit

Faster Installation Process

All components are included, reducing installation time and complexity.

Reduced Leakage Risk

Pre-flared connections ensure tight sealing and reliable performance.

Cost-Effective Solution

Eliminates the need to purchase accessories separately.

Professional-Grade Quality

Manufactured with strict quality control and international certifications.

OEM & Customization Services

We provide flexible OEM/ODM solutions:

• Custom lengths (3m–10m or more)

• Insulation thickness & material options

• Logo printing & branded packaging

• Bulk supply for distributors and contractors

Mini Split Air Conditioner Kit

1/4 + 3/8 Mini Split Air Conditioner Kit used for 0.75TON - 1.0TON mini split air conditioner.

1/4 + 1/2 All Insulated Copper Line Set used for 1.5TON - 2.0TON mini split air conditioning.

1/4 + 5/8 Insulated Copper Piping used for 2.0TON - 2.5TON split air conditioner system.

3/8 + 5/8 Insulated Copper Tube apply for 3.0TON - 4.0TON ductless mini split air conditioner.

3/8 + 3/4 Insulated Copper Tubing used for 4.5TON - 6.0TON split air conditioner installation.

3/8 + 7/8 Insulated Copper Piping apply for 6.0TON - 8.0TON ductless mini split air conditioner.

Air conditioning copper line sets 1/4 + 3/8 used for 0.75P and 1P split air conditioning.

Copper pipe kit 1/4 + 1/2 commonly used for 1.5P and 2P mini split air conditioners.

1/4 + 5/8 Mini Split Air Conditioner Kit used for 2P and 2.5air conditioner system.

3/8 + 5/8 Mini-split copper line set apply for 3P and 4P ductless mini split air conditioner.

3/8 + 3/4 Copper pipe kit used for 4.5P and 6P split aircon installation.

3/8 + 7/8 Insulated Copper Piping apply for 6P - 8p TON ductless mini split air conditioner.

1/4 + 3/8 Mini split line set used for 9000BTU and 12000 BTU split air conditioner.

All copper line set 1/4 + 1/2 commonly used for 12000 BTU and 18000 BTU mini split air conditioners.

1/4 + 5/8 Insulated copper line set used for 24000 BTU and 30000 BTU air conditioner system.

3/8 + 5/8 Mini-split line set apply for 36000 BTU and 48000 ductless air conditioner.

3/8 + 3/4 line set kit used for 54000 BTU and 72000 split air conditioner installation.

3/8 + 7/8 Mini Split Air Conditioner Kit apply for 72000 BTU - 96000 BTU ductless mini split air conditioner.

Aircon copper line set 1/4 + 3/8 used for 9K and 12K split air conditioner.

High quality copper line set 1/4 + 1/2 commonly used for 12K and 18K mini split air conditioners.

1/4 + 5/8 Insulated copper line set used for 24K and 30K air conditioner system.

3/8 + 5/8 Mini-split line set apply for 36K and 48K ductless air conditioner.

3/8 + 3/4 Line set kit used for 54K and 72K split air conditioner installation.

3/8 + 7/8 Mini Split Air Conditioner Kit apply for 72K - 96K ductless mini split air conditioner.

Why Choose 25 ft 1/4" x 5/8" Mini Split Air Conditioner Kit from DABUND PIPE

We are manufacturer of mini split air conditioner kit since 2008 years, have good experience of producing and exporting. We have cooperated 9 years forwarder, can guarantee the shipment. Every week we load at least 6-8 40HQ to different countries. Choose Dabund You will win the business.

Individual pre-insulated rolls to perfectly fit every ductless mini-splits, VRF, heat pumps and unitary systems installation.

Quality products with competitive pricing

Peace of mind with professional services

DABUND FACTORY

We produce Insulated Copper Pipe, Mini Split Line Set and Aluminum Pipe and HVAC Parts

SGS Certificate

Mini Split Line Set is made of Polypropylene or Black Rubber with UV Resistant, meets ASTM E 84, UL94, ASTM D1056 and ASTM G 21

Exhibition

We join the exhibitions all over the word, just to facilitate customers to experience our mini split line set face to face.

FAQ

What is included in a 25 ft mini split installation kit?

A standard kit includes insulated copper pipes, communication wire, drain hose, wall sleeve, and installation accessories, providing a complete HVAC setup solution.

What size system is a 1/4" x 5/8" line set used for?

This size is typically used for 2–2.5 ton (24,000–30,000 BTU) mini split air conditioning systems.

Why choose a pre-flared copper line set?

Pre-flared pipes simplify installation, reduce labor time, and minimize the risk of refrigerant leakage.

Is the insulation suitable for outdoor use?

Yes, the insulation is UV-resistant and flame-retardant, making it ideal for both indoor and outdoor installations.

What is the advantage of a complete AC installation kit?

A complete kit ensures compatibility between components, reduces sourcing time, and improves installation efficiency.

Can this kit be used for heat pumps?

Yes, it is compatible with both mini split air conditioners and heat pump systems.

Does the copper pipe meet international standards?

Yes, the copper tubing complies with ASTM B280 and C12200, ensuring high quality and durability.

Can I customize the mini split installation kit?

Yes, OEM customization is available, including length, insulation type, and branding.

Is 25 ft a suitable length for installation?

Yes, 25 ft is a common standard length suitable for most residential installations where indoor and outdoor units are moderately spaced.