30 ft 1/4" x 5/8" HVAC Installation Kit with Mini Split Copper Line Set
The DABUND 30 ft 1/4" x 5/8" HVAC installation kit is a complete mini split copper line set solution designed for efficient refrigerant flow, easy installation, and long-term durability. It includes pre-insulated copper tubing and essential accessories for mini split air conditioners, heat pumps, and residential or light commercial HVAC systems.
Instead of sourcing parts separately, this all-in-one HVAC kit helps contractors, distributors, and installers save time, reduce installation errors, and complete professional mini split setup faster.
All-in-One HVAC Installation Kit for Fast and Professional Setup
This 30 ft HVAC installation kit provides the main components needed for a clean and efficient mini split installation. It combines insulated copper piping, communication wiring, drainage, wall penetration protection, and installation accessories in one ready-to-install package.
Pre-insulated copper line set: 1/4" + 5/8", 30 ft
Communication wire cable
3 m drain hose
Wall sleeve and wall cover
Necessary fittings and installation accessories
1/4" + 5/8" Copper Line Set for 2–2.5 Ton HVAC Systems
The 1/4" liquid line and 5/8" suction line combination is commonly used for 24,000–30,000 BTU air conditioners and 2.0–2.5 ton mini split systems. This sizing supports balanced refrigerant flow and stable system efficiency when it matches the equipment manufacturer’s specifications.
Liquid line: 1/4" / 6.35 mm
Suction line: 5/8" / 15.88 mm
Length: 30 ft / approximately 9.14 m
Common capacity: 24,000–30,000 BTU / 2.0–2.5 ton systems
99.9% Pure Copper Tubing for Performance and Durability
Made from high-purity C12200 copper, this mini split copper line set provides excellent thermal conductivity, strong corrosion resistance, stable refrigerant transmission, and long service life under high-pressure HVAC conditions.
The copper tubing can comply with ASTM B280 standards according to product specification, making it suitable for professional HVAC, refrigeration, and mini split installation projects.
Pre-Insulated Copper Pipes for Energy Efficiency and Condensation Control
Factory-applied insulation helps maintain refrigerant temperature, reduce energy loss, and prevent condensation or moisture buildup. This improves HVAC efficiency and helps reduce maintenance problems over time.
Stable temperature control for refrigerant flow
Reduced thermal loss during cooling and heating operation
Condensation and moisture protection
Faster installation compared with field-wrapped pipe

99.9% Pure Copper

Black Rubber Insulated Pipe

Pre-Flared Copper Pipe
Pipe Insulation Tubing Features
The insulation tubing is designed for thermal protection, moisture control, and outdoor durability. Black rubber insulation works as both an insulation layer and a moisture-proof layer, helping reduce condensation in HVAC applications.
Material option: black rubber insulation
Temperature range: -40°C to 120°C
Moisture condensation protection
Insulation layer and moisture-proof layer combined in one structure
No additional vapor permeation protective layer required in many HVAC applications

Dual Insulation Options: White PE and Black Rubber
DABUND supports white PE insulation and black rubber insulation options according to project requirements, market preferences, and installation environments.
White PE insulation: lightweight and cost-effective
Black rubber insulation: premium, flexible, and durable
Available insulation thickness: 8 mm, 9 mm, 10 mm, 13 mm, 19 mm, and 25.4 mm
High-Performance Insulation with Fire and Safety Certifications
The insulation can meet ASTM E84, UL94, ASTM D1056, and ASTM G21 requirements according to selected material and specification. It is designed for safe and reliable operation in residential and commercial HVAC environments.
ASTM E84: fire and smoke rating
UL94: flame resistance
ASTM D1056: insulation material performance
ASTM G21: anti-microbial resistance
Pre-Flared Ends with Nuts for Easy, Leak-Resistant Connection
Both ends of the copper pipes can be supplied pre-flared with flare nuts. This reduces installation time, improves connection consistency, and helps create tight, leak-resistant connections during mini split installation.
Wide Compatibility with Mini Split, Heat Pump and HVAC Systems
This HVAC installation kit is suitable for ductless mini split air conditioners, heat pump systems, residential HVAC setups, and light commercial installations where the line size and accessories match the equipment requirements.
Ductless mini split air conditioners
Heat pump systems
Residential HVAC systems
Light commercial HVAC installations
OEM and distributor line set supply
UV-Resistant and Weatherproof for Indoor and Outdoor Applications
The insulation material is designed to resist UV exposure, prevent aging and cracking, and withstand temperatures from -40°C to 120°C. It is suitable for indoor concealed installation and outdoor exposed line set runs.
Technical Specifications of 30 ft HVAC Installation Kit
| Parameter | Details |
|---|
| Product Name | 30 ft 1/4" x 5/8" HVAC Installation Kit |
| Product Type | Complete mini split copper line set with accessories |
| Length | 30 ft / approximately 9.14 m |
| Liquid Line | 1/4" / 6.35 mm |
| Suction Line | 5/8" / 15.88 mm |
| Copper Material | 99.9% pure copper / C12200 |
| Copper Standard | ASTM B280 according to specification |
| Insulation | White PE or black rubber options |
| Temperature Range | -40°C to 120°C |
| Included Accessories | Communication cable, 3 m drain hose, wall sleeve, wall cover, fittings and accessories |
| Application | Mini split AC, heat pump, HVAC and refrigeration installation |
OEM and Custom HVAC Line Set Solutions for Distributors
DABUND supports OEM and ODM customization for HVAC wholesalers, distributors, contractors, importers, and mini split brands expanding globally.
Custom lengths such as 15 ft, 25 ft, 50 ft and more
Custom pipe size combinations
Insulation thickness and color customization
Logo printing on insulation
Private label packaging
Complete HVAC installation kit packaging

HVAC 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 HVAC 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 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 DABUND HVAC Installation Kit?
DABUND supplies HVAC installation kits as a reliable supply chain partner for contractors, distributors, wholesalers, and HVAC brands.
14+ years manufacturing experience
1,000,000 pcs/month production capacity
Fast sample support within about 5 days
Stable delivery for bulk orders
Export experience with global HVAC clients
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, HVAC installation kits, insulated copper pipes, and HVAC parts face to face.

FAQ
What is included in a 30 ft HVAC installation kit?
This kit includes a pre-insulated copper line set, communication cable, 3 m drain hose, wall sleeve, wall cover, fittings, and installation accessories for mini split AC installation.
What size system is a 1/4" x 5/8" line set used for?
It is typically used for 2–2.5 ton or 24,000–30,000 BTU air conditioning systems. Final line set selection should always follow the equipment manufacturer’s installation manual.
Why choose copper line sets instead of aluminum?
Copper offers better thermal conductivity, corrosion resistance, durability, and long-term reliability, which helps improve HVAC efficiency and reduce leakage risk over time.
Is the insulation pre-installed or do I need to add it?
The insulation is factory-applied, so additional field insulation is not required in most installations when the selected insulation specification matches the project environment.
Can this HVAC kit be used outdoors?
Yes. The insulation is designed for UV resistance, moisture protection, condensation control, and outdoor durability according to selected product specification.
What refrigerants are compatible with this line set?
This line set can support R410A, R32, and other modern refrigerants when the copper tube size, wall thickness, pressure rating, and system requirements match.
Can I customize the HVAC installation kit for my brand?
Yes. DABUND supports OEM customization, including custom length and size, logo printing, insulation thickness, insulation color, accessory combination, and packaging customization.
How long does installation typically take?
Installation time depends on the project and installer experience. A complete kit can reduce sourcing time, simplify preparation, and make the setup faster than purchasing separate components.
Is this product suitable for international markets?
Yes. It can meet ASTM and UL-related insulation requirements according to selected material and specification, and is suitable for global HVAC distributors, contractors, and mini split system brands.
What makes this product better than standard line sets?
Compared with a standard line set, this HVAC installation kit includes accessories, pre-insulated copper piping, certified insulation options, and customization support for distributor and OEM supply.