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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
Looking for a high-performance HVAC installation kit for larger capacity systems? This 25 ft 3/8" x 5/8" split AC installation kit is engineered for powerful refrigerant flow, easy installation, and long-term durability—perfect for residential and commercial HVAC applications.
Complete HVAC Installation Kit – All-in-One Solution for Professionals
This kit includes everything needed for installation:
Pre-insulated copper line set (3/8" + 5/8", 25 ft)
Communication wire cable
3m drain hose
Wall sleeve and cover
Pre-flared ends with nuts
No need to source components separately—this complete kit saves time, reduces labor costs, and minimizes installation errors.
3/8" + 5/8" Copper Line Set for 3–4 Ton HVAC Systems
This size combination is widely used for:
36,000 – 48,000 BTU air conditioners
3.0 – 4.0 ton mini split systems
It ensures efficient refrigerant circulation and optimal system performance, even in high-capacity cooling systems.
99.9% Pure Copper Tubing for Maximum Efficiency & Reliability
Manufactured from C12200 high-purity copper, this line set delivers:
Excellent thermal conductivity
Strong corrosion resistance
Long lifespan under high pressure
Complies with ASTM B280 standards, ensuring professional HVAC performance.
Pre-Insulated Copper Pipes for Energy Efficiency & Protection
The factory-applied insulation helps:
Reduce heat loss and energy consumption
Prevent condensation buildup
Maintain stable refrigerant temperature
This improves overall HVAC efficiency and reduces maintenance issues over time.
Dual Insulation Options – White PE & Black Rubber (Customizable)
Choose insulation based on project needs:
White PE insulation – lightweight and cost-effective
Black rubber insulation – flexible, durable, and premium
Thickness options available: 8mm – 25.4mm, suitable for various climates and installation conditions.
Fire-Resistant & Certified Insulation for Safe Operation
The insulation meets international standards:
ASTM E84 (fire & smoke rating)
UL94 (flame resistance)
ASTM D1056 (material performance)
ASTM G21 (anti-microbial resistance)
Ensuring safe and reliable use in residential and commercial HVAC environments.
Pre-Flared Ends with Nuts for Fast, Leak-Free Installation
Both copper pipes feature:
Precision pre-flared ends
Pre-installed flare nuts
This design allows for quick installation and secure, leak-resistant connections, saving time on-site.
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.
UV-Resistant & Weatherproof for Indoor and Outdoor Use
The insulation is designed to:
Resist UV exposure and harsh weather
Prevent cracking and aging
Operate in temperatures from -40°C to 120°C
Ideal for both indoor concealed and outdoor exposed installations.
25 Ft Length – Perfect Balance for Medium-Distance HVAC Installations
The 25 ft (7.62 m) length is ideal for:
Residential installations with moderate distance
Light commercial HVAC systems
Flexible installation layouts
It offers a balance between reach and efficiency, avoiding unnecessary piping waste.
Technical Specifications of 25 Ft HVAC Installation Kit
Length: 25 ft (7.62 m)
Liquid Line: 3/8"
Suction Line: 5/8"
Material: 99.9% pure copper
Insulation: PE or Black Rubber
Temperature Range: -40°C to 120°C
Application: HVAC / Refrigeration
OEM & Custom HVAC Copper Line Set Solutions
We offer full customization services:
Custom lengths (3m / 5m / 7m / 10m / etc.)
Insulation thickness and color
Logo printing
Private label packaging
Perfect for HVAC distributors, wholesalers, and OEM brands.
Split AC Installation Kit
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 |
1/4 + 3/8 Split AC Installation 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 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 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 Split AC Installation 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.
Split AC Installation Kit 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 This 25 Ft HVAC Installation Kit?
Compared to standard line sets, this product provides:
Complete installation solution
Certified insulation materials
High durability and pressure resistance
Faster installation time
Think of it as a professional-grade HVAC toolkit that simplifies your entire installation process.
Installation Tips for Best Performance
Avoid Sharp Bends
Maintain smooth curves to ensure proper refrigerant flow.
Secure the Line Set Properly
Use clamps or brackets to reduce vibration and wear.
Protect Wall Entry Points
Use wall sleeves to prevent insulation damage.
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
1.What is a 3/8" x 5/8" HVAC line set used for?
This size is commonly used for 3–4 ton (36,000–48,000 BTU) mini split air conditioners and heat pump systems, ensuring efficient refrigerant flow.
2.What is included in a 25 ft HVAC installation kit?
The kit includes a pre-insulated copper line set, communication cable, drain hose, wall sleeve, and installation accessories—providing a complete solution for HVAC installation.
3.Why is copper used for HVAC line sets?
Copper offers:
Better heat transfer
Strong corrosion resistance
Longer service life
This ensures higher efficiency and fewer leaks compared to alternative materials.
4.Is this line set suitable for outdoor installation?
Yes. The insulation is UV-resistant and weatherproof, making it suitable for both indoor and outdoor use.
5.Can this HVAC kit support modern refrigerants?
Yes, it is compatible with R410A, R32, and other modern refrigerants, depending on system requirements.
6.Do I need additional insulation during installation?
No. The copper pipes come pre-insulated, eliminating the need for extra insulation in most cases.
7.Can I customize this HVAC installation kit?
Yes. OEM services include:
Custom lengths
Insulation thickness and color
Logo printing and packaging
8.How does this compare to buying parts separately?
A complete installation kit:
Saves time
Reduces installation errors
Lowers labor costs
9.What industries use this HVAC installation kit?
Residential HVAC
Commercial air conditioning
HVAC distributors and wholesalers
10.Is this product suitable for export markets?
Yes. It meets ASTM and UL standards and is widely used in global HVAC projects.
