Home Mini Split Installation Kit Mini Split Air Conditioner Installation Kit 1/4" x 1/2" Insulated Copper Pipe for Split AC – HVAC Refrigerant Line Set
1/4" x 1/2" Insulated Copper Pipe for Split AC – HVAC Refrigerant Line Set
1/4" x 1/2" Insulated Copper Pipe for Split AC – HVAC Refrigerant Line Set
1/4" x 1/2" Insulated Copper Pipe for Split AC – HVAC Refrigerant Line Set
1/4" x 1/2" Insulated Copper Pipe for Split AC – HVAC Refrigerant Line Set
1/4" x 1/2" Insulated Copper Pipe for Split AC – HVAC Refrigerant Line Set
1/4" x 1/2" Insulated Copper Pipe for Split AC – HVAC Refrigerant Line Set
1/4" x 1/2" Insulated Copper Pipe for Split AC – HVAC Refrigerant Line Set
1/4" x 1/2" Insulated Copper Pipe for Split AC – HVAC Refrigerant Line Set
1/4" x 1/2" Insulated Copper Pipe for Split AC – HVAC Refrigerant Line Set
1/4" x 1/2" Insulated Copper Pipe for Split AC – HVAC Refrigerant Line Set
1.Mini Split Installation Kit including one set air conditioner insulated copper pipe, size 1/4"+1/2" 15 ft, and other accessories, like communication wire cable, drain hose 3m, wall pipe and cover and the other necessary parts. 
2. Both of the two copper pipe end do flaring and nuts. 
3. The insulation we can offer White PE and Black Rubber. White PE thickness is 3/8" 1/2" 3/4" 1" or 8mm 9mm 10mm 13mm 19mm 25.4mm. Black Rubber thickness is 1/2" 3/4" 1" or 13mm 17mm 19mm 25.4mm. 
4. For the AC Installation kit, most popular size is 3m 4m and 5m. Europe want 6m 7m 8m 10m. 
5. For the insulation we have SGS test report including ASTM E 84, UL 94, ASTM D1056, ASTM G 21, and copper pipe meets ASTM B280 AND C12200. 
6.Professional manufacturer of Mini Split Installation Kit, 2 factories, 1,000,000PCS per month, 5days for sample and 14years' experience.

  • DBJ-003

  • DABUND

  • Copper

  • 1M - 10M

Material

99.9% pure copper

Color

Black/White

Keywords

Mini Split Air Conditioner Kit

Application

HVAC
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This 1/4" x 1/2" insulated copper pipe is a high-efficiency refrigerant line set designed for split air conditioners, mini split systems, and heat pumps. Manufactured with 99.9% pure copper and high-density insulation, it ensures excellent thermal performance, energy efficiency, and long-term durability in HVAC installations.




H2: Product Overview – Pre-Insulated HVAC Copper Line Set

This line set includes a 1/4" liquid line and 1/2" suction line, pre-insulated and paired for easy installation.

  • Copper purity: 99.9% (ASTM B280 & C12200 compliant)

  • Available lengths: 15m / 20m / 25m / 30m / 50m

  • Insulation thickness: Multiple options (8mm–25.4mm)

  • Application: Split AC, mini split, heat pump systems

This size is widely used for 12,000–18,000 BTU (1.5–2 ton) air conditioning systems.

H2: Key Features of 1/4" x 1/2" Insulated Copper Pipe

H3: 99.9% Pure Copper with ASTM Certification

Made from high-quality copper compliant with ASTM B280 and C12200, ensuring superior thermal conductivity, corrosion resistance, and long service life.

H3: High Pressure Rating for Modern Refrigerants

With a pressure rating of 2100–7000 PSI, this copper pipe supports refrigerants such as R410A and R32, exceeding standard HVAC requirements.

H3: Advanced Insulation for Energy Efficiency

The insulation uses closed-cell polyethylene or polypropylene foam, reducing heat transfer and improving system performance.

H3: UV-Resistant & Flame-Retardant Design

Insulation meets multiple international standards:

  • ASTM E84

  • UL94

  • ASTM D1056

  • ASTM G21

Providing excellent fire resistance, UV protection, and durability for outdoor environments.

H2: Technical Specifications

H3: Copper Tube Dimensions

  • Liquid Line: 1/4 inch (6.35 mm)

  • Suction Line: 1/2 inch (12.7 mm)

H3: Insulation & Temperature Range

  • Insulation Material: PE / Polypropylene / Rubber Foam

  • Working Temperature: -40°C to 120°C

H3: Compliance Standards

  • ASTM B280 (Copper tubing)

  • ASTM E84 (Fire performance)

  • UL94 (Flame resistance)

  • ASTM D1056 / G21

Ensuring safety, durability, and HVAC compatibility.

H2: Applications – Ideal for Split AC & HVAC Systems

This insulated copper pipe is widely used in:

  • Mini split air conditioners

  • Heat pump systems

  • Central HVAC systems

  • Residential & commercial installations

It is typically suitable for 1.5–2 ton (12K–18K BTU) air conditioning units.


ALL COPPER PIPE

99.9% Pure Copper

black rubber insulated pipe2

Black Rubber Insulated Pipe


ac copper pipe kit65

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.


black rubber pipe


H2: Benefits of Pre-Insulated Copper Pipe

H3: Improved Energy Efficiency

Maintains refrigerant temperature and reduces energy loss.

H3: Condensation Prevention

Prevents moisture buildup and protects building structures.

H3: Faster Installation

Pre-insulated design reduces installation time and labor costs.

H3: Long-Term Durability

Copper combined with durable insulation ensures long service life.

H2: OEM & Customization Services

We provide flexible OEM/ODM solutions:

  • Custom lengths (1m–50m+)

  • Insulation thickness & material options

  • Logo printing on insulation

  • Bulk packaging for distributors


Black rubber copper pipe kit


Mini Split Air Conditioner 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 Mini Split Air Conditioner 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 Insulated Copper Pipe 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 line set 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.


Aircon copper line set 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 15 ft 1/4" x 1/2" Mini Split Air Conditioner Kit from DABUND PIPE

We are manufacturer of mini split air conditioner 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


Factory Profile



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


证书



Exhibition


We join the exhibitions all over the word, just to facilitate customers to experience our mini split line set face to face.


TRADE SHOW PARTICIPATION


FAQ

1.What is a 1/4" x 1/2" insulated copper pipe used for?

It is used as a refrigerant line set to connect indoor and outdoor units in split air conditioners and heat pump systems.

2.What size air conditioner uses a 1/4" x 1/2" line set?

This size is commonly used for 12,000–18,000 BTU (1.5–2 ton) mini split air conditioners.

3.Why is copper used for HVAC refrigerant pipes?

Copper offers excellent thermal conductivity, corrosion resistance, and durability, making it the preferred material for HVAC systems.

4.Why is insulation important for copper pipes?

Insulation reduces heat loss, improves efficiency, and prevents condensation, especially in humid environments.

5.Is this copper pipe compatible with R410A refrigerant?

Yes, it supports R410A and R32 refrigerants due to its high pressure rating and ASTM compliance.

6.Can this insulated copper pipe be used outdoors?

Yes, the insulation is UV-resistant and weatherproof, making it suitable for outdoor installations.

7.What standards does this copper tubing meet?

It complies with ASTM B280, ASTM E84, UL94, and ASTM D1056 standards for safety and performance.

8.Can I customize the insulated copper pipe?

Yes, OEM services are available, including custom lengths, insulation types, branding, and packaging.

9.How do I choose the correct HVAC line set size?

Choose based on your air conditioner’s BTU capacity and manufacturer specifications to ensure optimal performance.





Related Products

1. 3/8" x 7/8" x 50 ft is the out dimension in inch. 9.52mm - 22.22mm is the out dimension in metric. 2. 99.9% Pure copper pipe meets ASTM B280 and C12200 standard.  3. AC Copper Size what we can do have following 1/4" 3/8" 1/2" 5/8" 3/4" 7/8" 1 1/8", length can do 15m 20m 25m 30m 50m.  4. Insulation is made of 1/2" Polypropylene & UV Resistant, meets ASTM E 84, UL94, ASTM D1056 and ASTM G 21. Working temperature from -40℃ to 120℃.  5. Works for every Air Conditioning & Refrigeration Application including Ductless mini-split, heat pump and Centralized Air Ducted Units.  6. Pressure Rating: 2100 to 7000 PSI, much more than required 700 PSI for R410.  7. Insulation we produce by ourself, can print your company name, size, meters etc.
1. 1/4" x 1/2" is the out dimension in inch. 6.35mm - 12.7mm is the out dimension in metric. 2. 99.9% Pure copper pipe meets ASTM B280 and C12200 standard.  3. AC Copper Size what we can do have following 1/4" 3/8" 1/2" 5/8" 3/4" 7/8" 1 1/8", length can do 15m 20m 25m 30m 50m.  4. Insulation is made of 1/2" Polypropylene & UV Resistant, meets ASTM E 84, UL94, ASTM D1056 and ASTM G 21. Working temperature from -40℃ to 120℃.  5. Works for every Air Conditioning & Refrigeration Application including Ductless mini-split, heat pump and Centralized Air Ducted Units.  6. Pressure Rating: 2100 to 7000 PSI, much more than required 700 PSI for R410.  7. Insulation we produce by ourself, can print your company name, size, meters etc.
1. 1/2" x 3/4" is the out dimension in inch. 12.7mm - 19.05mm is the out dimension in metric. 2. 99.9% Pure copper pipe meets ASTM B280 and C12200 standard.  3. AC Copper Size what we can do have following 1/4" 3/8" 1/2" 5/8" 3/4" 7/8" 1 1/8", length can do 15m 20m 25m 30m 50m.  4. Insulation is made of 1/2" Polypropylene & UV Resistant, meets ASTM E 84, UL94, ASTM D1056 and ASTM G 21. Working temperature from -40℃ to 120℃.  5. Works for every Air Conditioning & Refrigeration Application including Ductless mini-split, heat pump and Centralized Air Ducted Units.  6. Pressure Rating: 2100 to 7000 PSI, much more than required 700 PSI for R410.  7. Insulation we produce by ourself, can print your company name, size, meters etc.
1.1/4" x 1/2" is the out dimension in inch. 6.35mm - 12.7mm is the out dimension in metric. 2. 99.9% Pure copper pipe meets ASTM B280 and C12200 standard.  3. AC Copper Size what we can do have following 1/4" 3/8" 1/2" 5/8" 3/4" 7/8" 1 1/8", length can do 15m 20m 25m 30m 50m.  4. Insulation is made of 1/2" Polypropylene & UV Resistant, meets ASTM E 84, UL94, ASTM D1056 and ASTM G 21. Working temperature from -40℃ to 120℃.  5. Works for every Air Conditioning & Refrigeration Application including Ductless mini-split, heat pump and Centralized Air Ducted Units.  6. Pressure Rating: 2100 to 7000 PSI, much more than required 700 PSI for R410.  7. Insulation we produce by ourself, can print your company name, size, meters etc.

Where is the AC Pipe, there is the Dabund Pipe.

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