This 35 ft 1/4" x 5/8" HVAC installation kit is a complete solution for mini split air conditioners and heat pump systems. It includes pre-insulated copper tubing and essential accessories, designed to ensure fast installation, efficient refrigerant flow, and long-term durability for residential and light commercial HVAC applications.
Complete Mini Split Installation Kit – All-in-One HVAC Solution
This installation kit includes everything needed for a professional AC setup:
35 ft insulated copper line set (1/4" liquid + 5/8" suction line)
Communication wire cable
3m drain hose
Wall sleeve and protective cover
Pre-flared ends with nuts
It simplifies installation by eliminating the need to source components separately.
Key Features of 1/4" x 5/8" HVAC Installation Kit
99.9% Pure Copper for Reliable Performance
Manufactured with high-purity copper compliant with ASTM B280 & C12200, ensuring excellent thermal conductivity, corrosion resistance, and long service life.
Pre-Flared Ends for Fast & Leak-Free Installation
Factory-flared ends with nuts reduce installation time and minimize refrigerant leakage risks, making it ideal for both professionals and experienced installers.
Dual Insulation Options for Different Environments
Available insulation options include:
Both provide excellent thermal protection and adaptability across climates.
Flame-Retardant & UV-Resistant Insulation
Insulation materials meet multiple international standards:
ASTM E84
UL94
ASTM D1056
ASTM G21
Ensuring fire safety, UV resistance, and long-term durability.
Technical Specifications
Copper Pipe Size & Length
Insulation & Performance
Insulation Material: PE / Rubber Foam
Working Temperature: -40°C to 120°C
Moisture-proof and condensation-resistant
Compliance Standards
These ensure safety, durability, and HVAC compatibility.
Applications – Ideal for Residential & Light Commercial HVAC
This installation kit is widely used in:
Mini split air conditioners
Heat pump systems
Residential HVAC installations
Small commercial cooling systems
Typically suitable for 2–3 ton (18,000–36,000 BTU) systems depending on manufacturer specifications.
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.

Excellent Heat Preservation Insulation: The high density and closed structure of selected raw material has the ability of low thermal conductivity and stable temperature,so the inside of the copper liquid pipe will not be affected even if the weather is frozen outside
Eco-friendly Material: The environmental friendly raw material has no stimulation and pollution, it can avoid the mold growth and mouse biting; The material has the effection of corrosion-resistant, acid and alkali, it can increase the life of using
Excellent Flame Retardant Properties: The material contains a large amount of flame-retardant cigarette raw materials, and the bath fire is not easy to burn and melt, the range of Using temperature is from -40℃ to 120℃
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.
The pipe insulation has many functions such as Heat Preservation Ability, Environmental pollution free, Good flame retardant properties and so on. Besides, it can make your home more tidy and protect the copper pipe in summer.
The pipe insulation has many functions such as Heat Preservation Ability, Environmental pollution free, Good flame retardant properties and so on. Besides, it can make your home more tidy and protect the water pipe whenever summer or copper pipe.
35 ft 1/4" x 5/8" HVAC Installation Kit for HVACR Applications Wholesaler & Supplier
DABUND PIPE in-house tested HVAC Installation Kit is designed to make installation sample and quick – saving you time and money on each job.

HVAC 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 HVAC 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 HVAC Installation Kit used for 4.5P and 6P split aircon installation.
3/8 + 7/8 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 HVAC Installation Kit apply for 36000 BTU and 48000 ductless air conditioner.
3/8 + 3/4 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.
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 HVAC Installation 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 35 ft 1/4" x 5/8" HVAC Installation Kit from DABUND PIPE
We are manufacturer of HVAC Installation Kit since 2008 years, have good experience of producing and exporting. We have cooperated 9 years forwarder, can guarantee the shipment. Every week we load at least 6-8 40HQ to different countries. Choose Dabund You will win the business.
Individual pre-insulated rolls to perfectly fit every ductless mini-splits, VRF, heat pumps and unitary systems installation.
Quality products with competitive pricing
Peace of mind with professional services
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 included in a 35 ft HVAC installation kit?
It includes insulated copper pipes, communication wire, drain hose, wall sleeve, and essential accessories for a complete HVAC installation.
2.What size AC system uses a 1/4" x 5/8" line set?
This size is commonly used for 2–3 ton (18,000–36,000 BTU) mini split air conditioning systems.
3.Why choose a pre-flared copper line set?
Pre-flared ends simplify installation, reduce labor time, and minimize the risk of refrigerant leakage.
4.What are the advantages of insulated copper pipes?
They reduce heat loss, improve energy efficiency, and prevent condensation in HVAC systems.
5.Is this installation kit suitable for outdoor use?
Yes, the insulation is UV-resistant, flame-retardant, and designed for outdoor environments.
6.Can this kit be used for heat pump systems?
Yes, it is compatible with both mini split air conditioners and heat pump systems.
7.What standards does this copper tubing meet?
It complies with ASTM B280, ASTM E84, UL94, and ASTM D1056, ensuring safety and performance.
8.Can I customize the HVAC installation kit?
Yes, OEM customization is available, including length, insulation type, branding, and packaging.
9.Is 35 ft a suitable length for HVAC installation?
Yes, 35 ft is ideal for standard residential installations where indoor and outdoor units are moderately spaced.