82 ft 1/4" × 3/8" Pre-Insulated Copper Pipe – Mini Split HVAC Refrigerant Line Set

High-quality 82 ft pre-insulated copper pipe designed for mini split air conditioners and ductless heat pump systems. This 1/4" × 3/8" HVAC refrigerant line set delivers superior thermal performance, corrosion resistance, and easy installation for residential and light commercial applications.

The Pre-insulated Copper Pipe is twin already. So buy it now.

Product Overview – 82 ft Mini Split Copper Line Set

This 82-foot pre-insulated copper pipe set includes:

• 1/4" liquid line

• 3/8" suction line

• Factory-applied high-density insulation

• Flexible, easy-to-route copper tubing

• Designed for mini split and ductless AC systems

Ideal for extended installations where longer refrigerant runs are required between indoor and outdoor units.

Technical Specifications – Built for HVAC Performance

Premium Copper Refrigerant Tubing

• Length: 82 ft (25 meters)

• Sizes: 1/4" (liquid) & 3/8" (suction)

• Material: 99.9% pure seamless copper

• Excellent thermal conductivity

• High pressure resistance for modern refrigerants (R410A, R32)

Copper tubing ensures stable refrigerant flow, optimal cooling efficiency, and long service life.

High-Density Pre-Insulation

• Closed-cell foam insulation

• UV-resistant outer protective jacket

• Moisture and condensation resistant

• Reduces thermal loss and energy waste

The pre-insulated design saves installation time and improves system efficiency in both hot and cold climates.

Key Benefits of This 1/4" × 3/8" Copper Pipe

Optimized for Mini Split Systems

Perfectly sized for smaller capacity mini split air conditioners, ensuring proper refrigerant balance and system performance.

Energy-Efficient Operation

The insulation minimizes temperature fluctuations, helping the HVAC system operate more efficiently and reducing energy consumption.

Easy Installation & Flexible Routing

Soft copper tubing allows smooth bending without cracking, simplifying routing through walls, ceilings, or exterior runs.

99.9% Pure Copper

White PE Insulated Pipe

Plastic Cap

Features of pipe insulation tubing:

Machines for the production of thermal insulation pipes

warehouse for insulation pipes

Inner Layer Insulated Pipe

Applications – Where This HVAC Line Set Is Used

This 82 ft insulated copper pipe is suitable for:

• Ductless mini split air conditioners

• Residential split AC systems

• Heat pump installations

• Apartment and office HVAC setups

• Replacement refrigerant line projects

Ideal for HVAC contractors, installers, wholesalers, and DIY professionals.

Installation Tips for Maximum Efficiency

To ensure reliable HVAC performance:

1. Measure the required length before cutting.

2. Avoid kinking the copper tubing during bending.

3. Maintain continuous insulation coverage.

4. Use proper flaring and torque specifications.

5. Pressure test before system startup.

Proper installation improves efficiency and prevents refrigerant leaks.

Pre-Insulated Copper pipe

1/4 + 3/8 Pre-insulated copper pipe used for 0.75TON - 1.0TON mini split air conditioner.

1/4 + 1/2 Mini split line set used for 1.5TON - 2.0TON mini split air conditioning.

1/4 + 5/8 Copper line set 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 Insulated copper line set 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 Pre-insulated copper pipe used for 54000 BTU and 72000 split air conditioner installation.

3/8 + 7/8 Insulated copper pipe 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 Pre-insulated copper pipe used for 54K and 72K split air conditioner installation.

3/8 + 7/8 Insulated copper pipe apply for 72K - 96K ductless mini split air conditioner.

Why Choose 82 ft 1/4" x 3/8" Pre-Insulated Copper Pipe from DABUND PIPE

We are manufacturer of Pre-insulated copper pipe 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.Q:What is your payment terms?

A:TT,L/C AT SIGHT,CREDIT CARD etc

2.Q:What is your delivery terms?

A:EXW, FOB, CFR, CIF etc

3.Q:Are you trading company or manufacturer?

A:Manufacturer

4.Q:May I get a sample?

A:Yes, we can send you 3pieces free samples.

   You just charge for the express cost is ok.

5.Q:Can I print my logo?

A:Yes of cause, we accept OEM and ODM.

6.Q:How long is your delivery time?

A:Usually 15-20days, if urgent, we can arrange to do in advance and delivery fast.

7.Is this 82 ft copper pipe compatible with all mini split brands?

Yes, it is compatible with most major mini split and ductless AC systems. Always confirm size requirements in your system manual.

8.Can the pipe be shortened if needed?

Yes, the copper tubing can be cut to custom lengths. Ensure proper flaring and sealing after trimming.

9.Does it require additional insulation?

No. The factory-applied insulation is designed to meet HVAC installation standards and does not require extra wrapping under normal conditions.