1/4" x 3/8" x 50 ft Insulated Copper Pipe for Mini Split & HVAC Systems

Looking for a reliable, high-performance copper line set? This 1/4" x 3/8" x 50 ft insulated copper pipe is engineered for modern HVAC systems, delivering efficient refrigerant flow, superior insulation, and long-term durability.

Designed for mini split air conditioners, heat pumps, and refrigeration systems, it combines 99.9% pure copper with high-quality insulation to ensure optimal system performance.

The Insulated Copper Pipe Air Conditioning is twin already. So buy it now.

Key Features of 1/4" x 3/8" 50 ft Copper Line Set

• 99.9% Pure Copper (C12200) for excellent corrosion resistance

• Meets ASTM B280 HVAC standard

• Pre-insulated with UV-resistant polypropylene foam

• Wide operating temperature: -40℃ to 120℃

• High pressure rating: 2100–7000 PSI

• Suitable for R410A & modern refrigerants

This ensures durability, efficiency, and compliance with global HVAC requirements

Product Specifications

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

Designed for HVAC & Mini Split Applications

This copper line set is ideal for:

• Ductless mini split air conditioners

• Heat pump systems

• Central air conditioning systems

• Refrigeration units

Its standard 1/4" + 3/8" configuration is widely used in residential HVAC installations

Superior Insulation for Energy Efficiency

The insulation layer is not just a bonus—it’s essential.

• Prevents condensation buildup

• Reduces energy loss during refrigerant transfer

• Protects pipes from UV and environmental damage

Think of it like a thermal jacket—it keeps the system efficient and stable.

High Pressure & Leak Resistance Performance

With a pressure tolerance up to 7000 PSI, this copper line set far exceeds typical HVAC requirements (~700 PSI for R410A systems)

That means:

• Lower risk of leakage

• Better long-term reliability

• Safe operation under extreme conditions

Easy Installation & Flexible Design

• Pre-insulated twin tubes simplify installation

• Flexible copper allows easy bending without cracking

• Clean packaging ensures damage-free transport

Whether you're a contractor or distributor, this product saves time and labor.

OEM & Customization Services Available

Want to build your own brand?

This product supports:

• Custom logo printing on insulation

• Custom lengths (15m–50m)

• Private label packaging

Perfect for wholesalers, distributors, and HVAC brands.

Why Choose This Copper Line Set?

Because it delivers what matters:

✔ Consistent refrigerant flow
✔ Reduced energy consumption
✔ Long service life (20+ years)
✔ Compliance with global standards

In short—it’s built for performance and reliability.

Insulated Copper Pipe Air Conditioning

1/4 + 3/8 Insulated copper pipe air conditioning 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 piping 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 Insulated copper pipe used for 54000 BTU and 72000 split air conditioner installation.

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

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

Why Choose 1/4 in. x 3/8 in. x 50 ft Insulated Copper Pipe Air Conditioning from DABUND PIPE

We are manufacturer of 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.What is a 1/4" x 3/8" copper line set used for?

This size is commonly used in mini split air conditioners (9,000–12,000 BTU) and small HVAC systems. It connects indoor and outdoor units for refrigerant transfer.

2.Is this copper line set compatible with R410A refrigerant?

Yes, it is fully compatible. The high pressure rating (up to 7000 PSI) ensures safe operation with R410A and newer refrigerants.

3.Does the insulation prevent condensation?

Absolutely. The insulation is designed to:

• Reduce condensation

• Prevent energy loss

• Improve overall system efficiency

4.Can I customize the copper line set for my brand?

Yes. OEM/ODM services include:

• Logo printing

• Custom length

• Packaging customization

5.How long does an insulated copper pipe last?

With proper installation, it can last 20+ years, thanks to corrosion-resistant copper and durable insulation.

6.Is this suitable for both residential and commercial HVAC systems?

Yes, it works for:

• Residential mini split systems

• Commercial HVAC installations

• Heat pumps and refrigeration

7.What’s the difference between pre-insulated and non-insulated copper pipes?

Pre-insulated pipes:

• Save installation time

• Improve efficiency

• Reduce condensation risk

Non-insulated pipes require additional labor and materials.

8.Do I need professional installation?

While DIY is possible, professional installation ensures:

• Proper sealing

• Correct pressure handling

• Maximum system lifespan