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DBJ-003
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DABUND
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Copper
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1M - 10M
Material
Color
Keywords
Application
25 ft 1/2" x 3/4" Split AC Installation Kit
The 25 ft 1/2" x 3/4" split AC installation kit is a complete HVAC line set solution designed for ductless air conditioners, mini split systems, heat pumps and split AC installation projects.
This kit includes a pre-insulated 1/2" x 3/4" copper refrigerant line set and essential installation accessories, helping HVAC installers complete a cleaner, faster and more reliable indoor-to-outdoor unit connection.
Dabund supplies split AC installation kits, mini split line sets, insulated copper pipe and HVAC accessories for contractors, wholesalers, distributors, importers and OEM private-label buyers.
Product Overview: All-In-One Split AC Installation Kit
The 25 ft 1/2" x 3/4" split AC installation kit combines factory-insulated copper refrigerant lines with key installation accessories needed for mini split and ductless HVAC projects.
By packaging the line set, insulation, drain hose, communication cable, wall pipe, wall cover and fittings together, this complete HVAC line set solution helps reduce part-matching errors and save jobsite preparation time.
What Is Included in the 25 ft Split AC Installation Kit?
| Component | Function |
| 1/2" Copper Refrigerant Line | Supports refrigerant transfer in compatible split AC and heat pump systems. |
| 3/4" Copper Refrigerant Line | Used as the matching larger refrigerant line in compatible HVAC systems. |
| Factory-Applied Insulation | Reduces heat gain, heat loss and surface condensation. |
| Communication Wire Cable | Supports indoor and outdoor unit communication where applicable. |
| Condensate Drain Hose | Discharges condensate water from the indoor unit. |
| Wall Pipe and Wall Cover | Protects wall penetration and creates a clean installation finish. |
| Flare Nuts and Fittings | Support secure refrigerant line connections during installation. |
Key Features of 25 ft 1/2" x 3/4" Split AC Installation Kit
25 ft complete HVAC line set solution for split AC and mini split installation.
1/2" x 3/4" pre-insulated copper line set for compatible HVAC systems.
Factory-applied insulation helps improve thermal efficiency and condensation control.
Includes communication wire, drain hose, wall pipe, wall cover, flare nuts and fittings.
99.9% pure copper tubing supports stable refrigerant flow and long-term durability.
Pre-insulated line set reduces field-wrapping labor and installation time.
Suitable for split air conditioners, mini splits, ductless HVAC systems and heat pumps.
Designed for residential, office and light commercial HVAC installations.
OEM packaging, logo printing and customized kit configuration are available.
Pre-Insulated Copper Line Set for Thermal Efficiency
Factory-Applied Insulation
The copper refrigerant lines are supplied with factory-applied insulation to help maintain stable refrigerant temperature, reduce energy loss and prevent surface condensation.
25 ft Length for Standard Split AC Installations
The 25 ft line set length is suitable for many standard indoor-to-outdoor unit distances in residential and light commercial split AC installations.
Cleaner and Faster Installation
A ready-to-install kit reduces the need to purchase separate accessories, helping installers save time and create a more professional installation appearance.
Key Benefits of This Installation Kit
Easy and Efficient Installation
This pre-built kit reduces on-site preparation by providing the line set, insulation and accessories needed for common split AC installation work.
Improved HVAC System Performance
Pre-insulated copper lines help maintain stable refrigerant temperature throughout the system, supporting cooling and heating efficiency.
Condensation and Moisture Protection
Factory-applied insulation reduces surface condensation, helping protect walls, ceilings and interior areas from water stains, mold risk and moisture damage.
Professional Installation Appearance
The included wall pipe and cover help protect wall penetration points and create a clean finish for indoor and outdoor line routing.
99.9% Pure Copper
White PE Insulated Pipe
Copper Nut
Pipe Insulation Tubing Structure
The white PE insulation structure helps protect the copper line set from heat transfer, moisture condensation and normal installation wear. It supports stable HVAC performance across indoor and outdoor line runs.
Embossed White PE Outer Layer
The outer layer helps resist aging, abrasion and sunlight exposure while maintaining a clean appearance after installation.
Closed-Cell Foam Insulation
The closed-cell insulation layer helps reduce heat transfer, water penetration and condensation on refrigerant lines.
Inner Protective Layer
The inner layer protects the copper pipe surface and helps maintain insulation performance across the full line set.
Thermal Insulation Pipe Production
Insulation Pipe Warehouse
Inner Layer Insulated Pipe
Compatibility and HVAC Applications
Designed for Split AC and Mini Split Systems
This kit is suitable for split air conditioners, ductless mini splits, heat pumps and compatible HVAC systems used in residential and light commercial environments.
Suitable for Modern Refrigerants
The copper lines and insulation can support common HVAC refrigerants such as R410A, R32 and similar refrigerants when installed according to system manufacturer requirements.
Technical Specifications
| Feature | Detail |
| Product Name | 25 ft 1/2" x 3/4" Split AC Installation Kit |
| Line Set Length | 25 ft / 7.62 m |
| Line Size | 1/2" x 3/4" |
| Copper Material | 99.9% pure copper |
| Insulation | Factory-applied UV-resistant insulation |
| Included Accessories | Communication wire, drain hose, wall pipe, wall cover, flare nuts and fittings |
| Applications | Split AC, mini split, ductless HVAC and heat pump systems |
| Compatible Refrigerants | R410A, R32 and similar HVAC refrigerants |
| Customization | Length, insulation thickness, logo printing and package configuration available |
Installation Tips for Best Performance
Measure and Plan Line Run Before Installation
Confirm the total distance and routing path between the indoor and outdoor units before installation. Avoid sharp bends, kinks and unnecessary tension on the copper lines.
Protect Lines at Wall Penetrations
Use the included wall pipe and cover to protect the copper tubing and insulation where the line set passes through the wall.
Support Lines with Clamps or Brackets
Secure the line set with proper clips, straps or brackets to reduce vibration, sagging and insulation damage over time.
Follow Equipment Manufacturer Requirements
Always confirm line size, maximum line length, flare connection, torque value and refrigerant charge requirements with the AC equipment manufacturer.
Split AC Installation Kit Size Options
| Size | Length | Insulation White PE | Flame Resistant |
| 1/4 + 3/8 | 3 m / 4 m / 5 m / 7 m / 10 m | 8 mm / 9 mm / 10 mm / 13 mm / 19 mm / 25.4 mm | M1 / B1 |
| 1/4 + 1/2 | 3 m / 4 m / 5 m / 7 m / 10 m | 8 mm / 9 mm / 10 mm / 13 mm / 19 mm / 25.4 mm | M1 / B1 |
| 1/4 + 5/8 | 3 m / 4 m / 5 m / 7 m / 10 m | 8 mm / 9 mm / 10 mm / 13 mm / 19 mm / 25.4 mm | M1 / B1 |
| 3/8 + 5/8 | 3 m / 4 m / 5 m / 7 m / 10 m | 8 mm / 9 mm / 10 mm / 13 mm / 19 mm / 25.4 mm | M1 / B1 |
| 3/8 + 3/4 | 3 m / 4 m / 5 m / 7 m / 10 m | 8 mm / 9 mm / 10 mm / 13 mm / 19 mm / 25.4 mm | M1 / B1 |
| 1/2 + 3/4 | 3 m / 4 m / 5 m / 7 m / 10 m | 8 mm / 9 mm / 10 mm / 13 mm / 19 mm / 25.4 mm | M1 / B1 |
| 3/8 + 7/8 | 3 m / 4 m / 5 m / 7 m / 10 m | 8 mm / 9 mm / 10 mm / 13 mm / 19 mm / 25.4 mm | M1 / B1 |
Recommended Applications by AC Capacity
| Line Set Size | Common AC Capacity | Typical BTU Range | Typical Application |
| 1/4 + 3/8 | 0.75 ton - 1.0 ton | 9,000 BTU - 12,000 BTU | Small mini split air conditioner |
| 1/4 + 1/2 | 1.5 ton - 2.0 ton | 12,000 BTU - 18,000 BTU | Residential mini split system |
| 1/4 + 5/8 | 2.0 ton - 2.5 ton | 24,000 BTU - 30,000 BTU | Split air conditioner system |
| 3/8 + 5/8 | 3.0 ton - 4.0 ton | 36,000 BTU - 48,000 BTU | Ductless mini split and heat pump |
| 3/8 + 3/4 | 4.5 ton - 6.0 ton | 54,000 BTU - 72,000 BTU | Larger split AC installation |
| 3/8 + 7/8 | 6.0 ton - 8.0 ton | 72,000 BTU - 96,000 BTU | Commercial ductless HVAC systems |
The 1/2" x 3/4" line set kit is commonly used for larger split AC and HVAC installations. Final sizing should always follow the AC equipment manufacturer’s installation manual.
Why Choose This 25 ft Split AC Installation Kit?
Complete Ready-to-Install Solution
This kit provides line set components and accessories in one package, reducing the need for additional parts and simplifying the HVAC installation process.
Professional-Grade Materials and Performance
With 99.9% pure copper tubing and factory-insulated line sets, this kit supports reliable refrigerant flow, thermal efficiency and long-term durability.
Ideal for Residential and Light Commercial HVAC Projects
This split AC installation kit is suitable for homes, apartments, offices and light commercial projects where a 25 ft line set solution is required.
OEM and Bulk Supply Available
Dabund supports customized kit configuration, insulation thickness, logo printing, packaging design and bulk production for distributors and HVAC brands.
Dabund Factory
Dabund produces insulated copper pipe, mini split line set, aluminum pipe and HVAC parts for global customers.
SGS Certificate
Mini split line set insulation can be made of polypropylene or black rubber with UV resistance, meeting ASTM E84, UL94, ASTM D1056 and ASTM G21 requirements.
Exhibition
Dabund joins HVAC exhibitions worldwide to present mini split line set and split AC installation kit products to customers face to face.
FAQ
What is a 25 ft 1/2" x 3/4" split AC installation kit used for?
It is used to install split air conditioners, mini splits, ductless HVAC systems and heat pumps by connecting indoor and outdoor units with insulated copper refrigerant lines and accessories.
What does 1/2" x 3/4" refer to?
It refers to the outer diameters of the copper refrigerant lines. The 1/2" and 3/4" line sizes are used in compatible split AC and HVAC systems.
What accessories are included in this installation kit?
The kit can include insulated copper lines, communication wire, drain hose, wall pipe, wall cover, flare nuts and fittings for split AC installation.
Is this installation kit suitable for outdoor use?
Yes. The factory-applied insulation is UV-resistant and weather-ready for many indoor and outdoor refrigerant line runs when installed correctly.
Do I need extra insulation on site?
In most standard installations, no extra insulation is needed because the kit comes with factory-applied insulation. Local codes or harsh environments may require additional protection.
Is this kit compatible with R410A and R32 refrigerants?
Yes. The copper lines and insulation can support modern HVAC refrigerants such as R410A and R32 when installed according to equipment requirements and local code standards.
Can this 25 ft line set be shortened?
Yes. The copper line set can be cut to the required length, but proper cutting, deburring, flaring and sealing are required to maintain system integrity.
Can Dabund customize the kit configuration?
Yes. Dabund can customize line length, insulation thickness, accessory configuration, logo printing, packaging and private-label requirements.
Are you a trading company or manufacturer?
Dabund is a manufacturer of split AC installation kits, mini split line sets, insulated copper pipe, aluminum pipe and HVAC parts.
Can I get a free sample?
Yes. Dabund can provide qualified customers with 3 pieces of free samples. Express cost may need to be covered by the buyer. You can request samples through the free sample page.
Can I print my logo?
Yes. Dabund accepts OEM and ODM orders, including logo printing, brand marking, size printing, meter marking and customized packaging.
What payment terms are available?
Payment terms may include T/T, L/C at sight, credit card and other agreed payment methods depending on order details.
What delivery terms can you offer?
Dabund can offer common international trade terms such as EXW, FOB, CFR and CIF.
How long is your delivery time?
Normal delivery time is usually 15 to 20 days. For urgent orders, production and shipment can be arranged according to factory schedule.
