-
DBJ-003
-
DABUND
-
Copper
-
1M - 10M
Material
Color
Keywords
Application
25 ft 1/4" x 5/8" AC Installation Kit for Mini Split HVAC Systems
The DABUND 25 ft 1/4" x 5/8" AC installation kit is a complete mini split HVAC line set solution for ductless air conditioners, heat pump systems, and split AC installation projects. It includes pre-insulated copper tubing, communication wire, drain hose, wall sleeve, decorative cover, and pre-flared copper pipe ends with nuts, helping contractors and distributors complete installation faster and more reliably.
This 1/4" x 5/8" mini split line set is commonly used for 2.0 ton to 2.5 ton air conditioning systems, including 24000 BTU and 30000 BTU split air conditioners. It is suitable for HVAC contractors, mini split brands, wholesalers, importers, and project suppliers looking for a complete installation kit with OEM customization options.
Complete AC Installation Kit – All-in-One HVAC Line Set Solution
This complete AC installation kit provides the essential components required to connect indoor and outdoor mini split units. Instead of sourcing copper tubing, insulation, drain hose, cable, and wall accessories separately, installers can use one matched kit for faster setup and better installation consistency.
25 ft insulated copper line set: 1/4" liquid line + 5/8" suction line
Communication wire cable for indoor and outdoor unit connection
3m condensate drain hose
Wall sleeve and decorative wall cover
Factory pre-flared copper pipe ends with nuts
Optional custom packaging for wholesale and OEM orders
Key Features of 1/4" x 5/8" AC Installation Kit
99.9% Pure Copper for Reliable Refrigerant Flow
The copper tubing is manufactured from 99.9% pure copper and designed for HVAC refrigerant line applications. It provides excellent thermal conductivity, corrosion resistance, and long-term durability for mini split air conditioners, heat pumps, VRF systems, and unitary HVAC systems.
ASTM B280 and C12200 Compliant Copper Tubing
The copper tubing is produced to support HVAC installation requirements and can comply with ASTM B280 and C12200 standards. This helps improve compatibility with professional air conditioning and refrigeration applications.
Pre-Flared Ends for Faster Installation
Both ends of the copper pipe are factory flared and fitted with nuts. This helps reduce on-site preparation time, simplifies connection work, and lowers the risk of improper flaring during installation.
Black Rubber Insulation for Outdoor Durability
The black rubber insulation provides strong flexibility, moisture resistance, thermal protection, and outdoor durability. It helps reduce condensation, protect refrigerant performance, and improve long-term system efficiency.
Flame-Retardant and UV-Resistant Insulation
The insulation material is designed for HVAC environments and can meet fire performance and durability requirements such as ASTM E84, UL94, ASTM D1056, and ASTM G21 according to product specification.
99.9% Pure Copper
Black Rubber Insulated Pipe
Pre-Flared Copper Pipe
Black Rubber Pipe Insulation Features
The black rubber insulation is designed to support HVAC line set performance in both indoor and outdoor environments. It provides thermal insulation and moisture protection without requiring an additional water vapor permeation layer.
Insulation material: black rubber foam
Temperature range: -40°C to 120°C
Better moisture condensation protection
Insulation layer and moisture-proof layer combined in one structure
Flexible, durable, and suitable for outdoor HVAC installation
Technical Specifications
| Feature | Details |
|---|---|
| Product Name | 25 ft 1/4" x 5/8" AC Installation Kit |
| Application | Mini split air conditioner, heat pump, ductless HVAC system |
| Length | 25 ft / 7.6 m |
| Liquid Line | 1/4 inch / 6.35 mm |
| Suction Line | 5/8 inch / 15.88 mm |
| Copper Material | 99.9% pure copper |
| Insulation Material | Black rubber foam / PE insulation options |
| Temperature Range | -40°C to 120°C |
| Common Capacity | 2.0–2.5 ton / 24000–30000 BTU |
| Copper Standard | ASTM B280, C12200 |
| Insulation Standards | ASTM E84, UL94, ASTM D1056, ASTM G21 |
Applications – Ideal for 24K to 30K Mini Split Systems
The 1/4" x 5/8" AC installation kit is widely used in medium-capacity HVAC systems where reliable refrigerant flow and strong insulation performance are required.
24000 BTU and 30000 BTU mini split air conditioners
2.0 ton and 2.5 ton split AC systems
Residential HVAC installation projects
Light commercial cooling systems
Heat pump and ductless mini split systems
VRF, heat pump, and unitary system installation where specifications match
Benefits of Using a Complete AC Installation Kit
Faster Installation
The included copper line set, communication cable, drain hose, wall sleeve, and accessories help reduce preparation time and simplify mini split AC installation.
Improved HVAC System Efficiency
Pre-insulated copper tubing helps reduce heat transfer and condensation, supporting stable cooling performance and efficient refrigerant operation.
Reduced Installation Errors
Matched components help reduce compatibility problems and sourcing errors. The factory pre-flared ends also help installers save time during on-site preparation.
Long-Term Durability
High-purity copper, durable insulation, and weather-resistant design make the kit suitable for long-term HVAC system operation when installed correctly.
OEM and Customization Services
DABUND provides flexible OEM and ODM services for HVAC brands, contractors, wholesalers, importers, and distributors. Custom specifications can be produced according to market demand, installation standards, packaging requirements, and brand positioning.
Custom lengths: 3m, 4m, 5m, 7m, 10m, 25 ft, or customized length
Custom copper pipe sizes for different BTU and tonnage systems
Insulation thickness customization: 8mm, 9mm, 10mm, 13mm, 19mm, 25.4mm
White PE or black rubber insulation options
Logo printing on insulation
Branded packaging and bulk supply for distributors
AC Installation Kit Size Options
| Size | Length | Insulation Black Rubber | 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 |
Line Set Size and AC Capacity Reference
| Line Set Size | Common Ton / HP Range | Common BTU Range | Typical Application |
|---|---|---|---|
| 1/4 + 3/8 | 0.75 ton – 1.0 ton / 0.75P – 1P | 9000–12000 BTU / 9K–12K | Small mini split air conditioner |
| 1/4 + 1/2 | 1.5 ton – 2.0 ton / 1.5P – 2P | 12000–18000 BTU / 12K–18K | Medium mini split air conditioner |
| 1/4 + 5/8 | 2.0 ton – 2.5 ton / 2P – 2.5P | 24000–30000 BTU / 24K–30K | Split AC and heat pump system |
| 3/8 + 5/8 | 3.0 ton – 4.0 ton / 3P – 4P | 36000–48000 BTU / 36K–48K | Ductless commercial air conditioner |
| 3/8 + 3/4 | 4.5 ton – 6.0 ton / 4.5P – 6P | 54000–72000 BTU / 54K–72K | Large split AC installation |
| 3/8 + 7/8 | 6.0 ton – 8.0 ton / 6P – 8P | 72000–96000 BTU / 72K–96K | High-capacity ductless HVAC system |
Why Choose 25 ft 1/4" x 5/8" AC Installation Kit from DABUND?
DABUND has manufactured mini split air conditioner installation kits since 2008 and has strong experience in production, export, and global shipment support. The company supplies insulated copper pipes, mini split line sets, aluminum pipes, and HVAC parts for contractors, brands, distributors, and wholesale customers.
Manufacturer of mini split air conditioner kits since 2008
Experienced in producing and exporting HVAC line set products
Stable shipment support with long-term freight forwarder cooperation
Regular container loading for different export markets
Individual pre-insulated rolls for ductless mini splits, VRF, heat pumps, and unitary systems
Quality products with competitive pricing
Professional service for OEM, ODM, and bulk supply orders
DABUND Factory
We produce insulated copper pipe, mini split line set, aluminum pipe, and HVAC parts for global HVAC customers.
SGS Certificate
DABUND mini split line set insulation can be made of polypropylene or black rubber with UV resistance and can meet ASTM E84, UL94, ASTM D1056, and ASTM G21 standards according to product specification.
Exhibition
DABUND joins HVAC exhibitions worldwide to help customers evaluate mini split line sets, AC installation kits, and HVAC parts face to face.
FAQ
What is included in a 25 ft AC installation kit?
A 25 ft AC installation kit typically includes insulated copper pipes, communication wire, condensate drain hose, wall sleeve, decorative cover, and pre-flared copper pipe ends with nuts for a complete mini split HVAC setup.
What size air conditioner uses a 1/4" x 5/8" line set?
A 1/4" x 5/8" line set is commonly used for 2.0 ton to 2.5 ton mini split air conditioning systems, including 24000 BTU and 30000 BTU split AC units. Always confirm the required pipe size with the air conditioner manufacturer before installation.
Why choose a pre-flared copper line set?
Pre-flared ends simplify installation, reduce labor time, and help lower the risk of improper flare preparation. Professional pressure testing and proper torque control are still recommended during HVAC installation.
What is the benefit of black rubber insulated copper pipes?
Black rubber insulation provides thermal protection, moisture resistance, flexibility, and outdoor durability. It helps reduce condensation and supports stable HVAC system performance.
Is this AC installation kit suitable for outdoor use?
Yes. The insulation is designed for outdoor HVAC installation and offers UV resistance, moisture protection, and flame-retardant performance according to the selected specification.
Can this kit be used for heat pump systems?
Yes. This AC installation kit can be used for compatible mini split air conditioners, heat pump systems, ductless HVAC systems, and related refrigeration line applications.
What standards does this copper tubing meet?
The copper tubing can comply with ASTM B280 and C12200. The insulation can meet ASTM E84, UL94, ASTM D1056, and ASTM G21 requirements according to product material and specification.
Can I customize the AC installation kit?
Yes. DABUND supports OEM customization, including custom length, copper pipe size, insulation thickness, insulation material, logo printing, branded packaging, and bulk supply for distributors and contractors.
Why use a complete installation kit instead of separate components?
A complete installation kit improves component compatibility, reduces sourcing time, simplifies installation preparation, and helps contractors maintain more consistent installation quality across projects.
Who should buy this 25 ft 1/4" x 5/8" AC installation kit?
This kit is suitable for HVAC contractors, mini split brands, wholesalers, importers, distributors, project suppliers, and professional installers who need a complete copper line set solution for 24K to 30K split AC systems.
