-
DBJ-003
-
DABUND
-
Copper
-
1M - 10M
Material
Color
Keywords
Application
Looking for a reliable, ready-to-install HVAC line set? This 50 ft 3/8" x 5/8" split AC installation kit is engineered for efficient refrigerant flow, long-distance installation, and maximum durability—making it ideal for residential and light commercial HVAC projects.
Premium 50 Ft HVAC Copper Line Set for Long-Distance Installation
This 50 ft line set includes a 3/8" liquid line and 5/8" suction line, designed to support extended installations where indoor and outdoor units are far apart.
It’s like giving your HVAC system a long, smooth highway—ensuring refrigerant flows efficiently without pressure drops.
99.9% Pure Copper Tubing for Superior HVAC Performance
Manufactured with 99.9% pure copper, this line set delivers:
Excellent thermal conductivity
Strong corrosion resistance
Long service life under high pressure
Fully compliant with ASTM B280 & C12200 standards, ensuring professional-grade performance.
Pre-Insulated Copper Line Set for Energy Efficiency & Protection
The factory-applied insulation is designed to:
Minimize heat loss and energy waste
Prevent condensation and moisture buildup
Improve system efficiency
No need for extra insulation on-site—saving installation time and labor costs.
UV-Resistant Insulation for Indoor & Outdoor Use
Built with UV-resistant insulation, this line set performs reliably in:
Direct sunlight
Harsh weather conditions
Indoor concealed installations
Operating temperature range: -40°C to 120°C.
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.
High Pressure Rating for Modern Refrigerants (R410A & R32 Compatible)
With a pressure rating of 2100–7000 PSI, this line set easily exceeds standard HVAC requirements.
Compatible with:
R410A
R32
Other modern refrigerants
This ensures safe, leak-free operation even under demanding conditions.
Universal Compatibility with Mini Split & HVAC Systems
Perfectly suited for:
Ductless mini split air conditioners
Heat pump systems
Central air conditioning installations
Whether you're a contractor or distributor, this product offers wide application flexibility.
Ready-to-Install AC Installation Kit – Save Time & Labor
This split AC installation kit is pre-assembled and insulated, meaning:
Faster installation
Reduced labor costs
Fewer installation errors
Think of it as a plug-and-play solution for HVAC professionals.
Technical Specifications of 3/8" x 5/8" Line Set
Length: 50 ft (15.24 m)
Liquid Line: 3/8" (9.52 mm)
Suction Line: 5/8" (15.88 mm)
Material: 99.9% pure copper
Insulation: UV-resistant, closed-cell
Application: HVAC / Refrigeration
OEM & Custom HVAC Copper Line Set Solutions
We support full customization, including:
Length (15m / 20m / 30m / 50m)
Insulation thickness & color
Logo printing on insulation
Packaging customization
Perfect for wholesalers, distributors, and HVAC 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 50 Ft HVAC Line Set Over Others?
Compared to standard market options, this product offers:
Higher pressure resistance
Factory-controlled insulation quality
Custom branding capabilities
Better durability for long-term use
If cheaper line sets are like economy cars, this one is your reliable commercial truck.
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" line set used for?
This size is commonly used in mini split air conditioners and heat pump systems, where the 3/8" line carries liquid refrigerant and the 5/8" line returns vapor.
2.Is this copper line set compatible with all mini split brands?
Yes, it is compatible with most major brands as long as the required pipe size and maximum line length match the manufacturer’s specifications.
3.Why is insulation important for HVAC copper pipes?
Insulation helps:
Prevent energy loss
Reduce condensation
Improve system efficiency
Without insulation, HVAC systems lose performance and may develop moisture issues.
4.Can this 50 ft line set be used for long-distance installations?
Absolutely. This product is specifically designed for extended installations, maintaining pressure and efficiency even over long distances.
5.What refrigerants are supported by this line set?
It supports modern refrigerants such as R410A and R32, making it suitable for most modern HVAC systems.
6.Do I need additional insulation during installation?
No. The line set comes with factory-applied insulation, eliminating the need for additional insulation in most cases.
7.Can I customize the copper line set for my brand?
Yes. OEM services include:
Logo printing
Custom lengths
Packaging customization
Ideal for wholesalers and distributors.
8.How does this product compare to cheaper line sets?
Lower-cost options may use thinner copper or poor insulation. This product offers:
Higher durability
Better pressure resistance
Longer service life
9.What industries use this HVAC installation kit?
Residential HVAC
Commercial air conditioning
HVAC distributors & wholesalers
10.Is this product suitable for export markets?
Yes. It meets international standards and supports global export requirements, making it ideal for B2B buyers worldwide.
