Premium 25 ft split AC installation kit with pre-insulated 1/2″ x 3/4″ HVAC line set and essential accessories, designed for reliable and efficient installation of ductless air conditioners, mini splits, and heat pump systems.
The Split AC Installation Kit is twin already. So buy it now.
Product Overview – All-In-One Split AC Installation Kit
The 25 ft 1/2″ x 3/4″ split AC installation kit includes factory-insulated copper refrigerant lines and hardware accessories that simplify installation for HVAC professionals and experienced DIYers alike. This kit helps improve system efficiency, reduce installation time, and ensure a clean, professional setup.
Pre-Insulated Copper Line Set for Thermal Efficiency,
Includes 1/2″ liquid line and 3/4″ suction line with factory-applied insulation
Insulation minimizes heat gain/loss and prevents condensation
Saves labor time versus field-wrapped insulation
Complete Installation Accessories Included
Communication wiring cable for indoor–outdoor unit linkage
Condensate drain hose to manage moisture discharge
Wall pipe and cover for protected and neat wall penetration
Flare nuts and fittings for secure refrigerant connections
Key Features & Benefits of This Installation Kit
Easy and Efficient Installation
This pre-built kit reduces on-site preparation and labor by providing the ideal line set, insulation, and accessories — helping installers complete HVAC setups quickly and correctly.
Improved HVAC System Performance
Pre-insulated lines help maintain stable refrigerant temperatures throughout the system, improving cooling/heating efficiency and reducing energy loss.
Prevents Condensation and Moisture Damage
The factory-applied insulation significantly reduces surface condensation, protecting walls and interiors from water damage and mold growth.
Features of pipe insulation tubing:
![White PE Embossed insulated pipe]( "insulated pipe")
Compatibility & HVAC Applications
Designed for Split AC and Mini Split Systems
This kit is compatible with most split air conditioners, mini splits, and ductless HVAC systems found in residential and light commercial environments.
Suitable for Modern Refrigerants
The materials and design support commonly used refrigerants such as R410A, R32, and other standard HVAC refrigerants, meeting modern pressure and performance requirements.
Technical Specifications
| Feature | Detail |
| Line Set Length | 25 ft (7.62 m) |
| Liquid Line Size | 1/2″ |
| Suction Line Size | 3/4″ |
| Material | 99.9% Pure Copper |
| Insulation | Factory-applied, UV-resistant |
| Included Accessories | Communication wire, drain hose, wall pipe & cover, flare fittings |
| Applications | Split AC, Mini Split, Ductless HVAC systems |
| Refrigerants | R410A, R32, and similar refrigerants |
Installation Tips for Best Performance
Measure and Plan Line Run Before Installation
Confirm the total distance and path between indoor and outdoor units to ensure the 25 ft length and routing are suitable without sharp bends or tension.
Protect Lines at Wall Penetrations
Use the included wall pipe and cover to protect the copper tubing at the wall entry point, preventing damage to insulation and brush-up finishes.
Support Lines with Clamps or Brackets
Secure the line set with proper clips, straps, or bracket supports to minimize vibration, sagging, and insulation disruption.
![copper pipe kit]( "Copper pipe kit")
Split AC Installation Kit
Size | Length | Insulation White PE | Flame Resistant |
1/4+3/8 | 3m/4m/5m/7m/10m | 8mm/9mm/10mm/13mm/19mm/25.4mm | M1/B1 |
1/4+1/2 | 3m/4m/5m/7m/10m | 8mm/9mm/10mm/13mm/19mm/25.4mm | M1/B1 |
1/4+5/8 | 3m/4m/5m/7m/10m | 8mm/9mm/10mm/13mm/19mm/25.4mm | M1/B1 |
3/8+5/8 | 3m/4m/5m/7m/10m | 8mm/9mm/10mm/13mm/19mm/25.4mm | M1/B1 |
3/8+3/4 | 3m/4m/5m/7m/10m | 8mm/9mm/10mm/13mm/19mm/25.4mm | M1/B1 |
1/2+3/4 | 3m/4m/5m/7m/10m | 8mm/9mm/10mm/13mm/19mm/25.4mm | M1/B1 |
3/8+7/8 | 3m/4m/5m/7m/10m | 8mm/9mm/10mm/13mm/19mm/25.4mm | M1/B1 |
1/4 + 3/8 Split AC Installation Kit used for 0.75TON - 1.0TON mini split air conditioner.
1/4 + 1/2 Mini Split Line Set used for 1.5TON - 2.0TON mini split air conditioning.
1/4 + 5/8 Copper Line Set 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 Installation 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 Split AC Installation Kit 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 Split AC Installation Kit 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 Installation 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.
Mini Split Installation Kit 1/4 + 1/2 commonly used for 12K and 18K mini split air conditioners.
1/4 + 5/8 Split AC Installation Kit 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 Insulated Copper Piping apply for 72K - 96K ductless mini split air conditioner.
Why Choose This 25 ft Split AC Installation Kit?
Complete, Ready-to-Install Solution
This kit provides a complete set of line components and accessories, reducing the need for additional parts and simplifying the installation process.
Professional-Grade Materials & Performance
With 99.9% pure copper tubing and factory-insulated line sets, this kit supports reliable HVAC performance and long-term durability.
Ideal for Residential & Light Commercial HVAC Projects
Whether you’re a contractor or DIY installer, this kit is designed for versatile HVAC applications — from homes to offices and light commercial setups.
DABUND FACTORY
We produce Insulated Copper Pipe, Mini Split Line Set and Aluminum Pipe and HVAC Parts
![DABUND FACTORY]( "222")
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
![证书]( "证书")
Exhibition
We join the exhibitions all over the word, just to facilitate customers to experience our mini split line set face to face.
![AHR EXPO]( "2.jpg")
FAQ
1.Q:What is your payment terms?
A:TT,L/C AT SIGHT,CREDIT CARD etc
2.Q:What is your delivery terms?
A:EXW, FOB, CFR, CIF etc
3.Q:Are you trading company or manufacturer?
A:Manufacturer
4.Q:May I get a sample?
A:Yes, we can send you 3pieces free samples.
You just charge for the express cost is ok.
5.Q:Can I print my logo?
A:Yes of cause, we accept OEM and ODM.
6.Q:How long is your delivery time?
A:Usually 15-20days, if urgent, we can arrange to do in advance and delivery fast.
7. What does “1/2″ x 3/4″” refer to?
It refers to the outer diameters of the refrigerant copper lines: 1/2″ for the liquid line and 3/4″ for the suction line, commonly used in split AC and HVAC systems.
8.Is this installation kit suitable for outdoor use?
Yes — the factory-applied insulation is UV-resistant and weather-ready, making it suitable for both indoor and outdoor refrigerant lines.
9.Do I need extra insulation on site?
No — this kit comes with factory-applied insulation that typically eliminates the need for additional field wrapping in most installations.
10.Is this kit compatible with R410A and R32 refrigerants?
Yes — the copper lines and insulation are designed to support modern HVAC refrigerants such as R410A and R32 used in split AC and heat pump systems.
