75 ft 1/2″ × 3/4″ Insulated Copper Pipe – HVAC Pre-Insulated Refrigerant Line

Premium 75-foot insulated copper pipe designed for air conditioners, mini split, ductless AC, and HVAC heat pump installations — engineered to improve energy efficiency, reduce condensation, and ensure reliable long-term performance.

The Mini Split Air Conditioner Line Set is twin already. So buy it now.

Product Overview – High-Quality Insulated Copper Refrigerant Line

The 75 ft 1/2″ x 3/4″ insulated copper pipe features factory‐applied insulation and 99.9% pure copper tubing for superior thermal performance. It helps maintain optimal refrigerant temperatures, minimize heat loss, and prevent surface condensation in HVAC systems. Ideal for both indoor and outdoor refrigerant line runs.

Extended 75 ft Length for Flexible Installations

• Supports extended indoor–outdoor distance between HVAC units

• Ideal for large homes, multi-story buildings, and rooftop installations

• Eliminates the need for additional coupling or extensions

Standard 1/2″ x 3/4″ Line Size for HVAC Applications

• 1/2″ liquid line for efficient refrigerant delivery

• 3/4″ suction line for refrigerant return gas

• Commonly used in mid-to-large HVAC systems, mini split AC, and heat pumps

Factory-Applied Insulation for Thermal Efficiency

Reduces Heat Loss & Energy Waste

Factory insulation helps maintain temperatures along the line set, reducing heat gain/loss and improving system efficiency.

Controls Condensation & Moisture Buildup

Insulated tubing helps prevent surface condensation, protecting building interiors from water damage and mold risk.

UV-Resistant for Outdoor Performance

The insulation jacket is UV-resistant and weather-stable, suitable for exposed outdoor HVAC applications.

Premium Quality Copper Construction

99.9% Pure Copper Tubing for Reliable Operation

Made from high-purity copper, this line set ensures excellent:

• Thermal conductivity

• Corrosion resistance

• Strength and durability under HVAC pressures

Meets Industry Standards for HVAC Refrigerant Lines

• Conforms to ASTM B280 and C12200 copper tubing standards

• Suitable for high-pressure refrigerants including R410A and R32

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

Compatibility & Typical HVAC Applications

Perfect for Mini Split, Ductless & Split AC Systems

This insulated copper pipe is ideal for:

• Mini split air conditioner installations

• Ductless HVAC and heat pump systems

• Residential and light commercial cooling/heating setups

Works with Modern Refrigerants

Compatible with commonly used HVAC refrigerants such as R410A, R32, and others meeting standard pressure requirements.

Key Benefits of Insulated Copper Refrigerant Lines

Saves Installation Time & Labor

Factory-applied insulation eliminates field insulation wrapping, reducing installation time and labor costs.

Enhances HVAC Efficiency

Insulated lines help maintain refrigerant temperature stability over long runs, improving overall system efficiency.

Cleaner, Professional Installations

Pre-insulated copper pipe delivers a neat and professional finish compared with field-wrapped lines.

Technical Specifications

Installation Tips for Best Results

Confirm Line Distance & Routing

Measure the total run length and plan the path before installation to avoid sharp bends and potential insulation damage.

Protect Tubing at Penetration Points

Use wall sleeves or protective grommets where lines pass through walls to avoid damage and preserve insulation integrity.

H3: Use Secure Supports for Long Runs

Install proper clamps or bracket supports to minimize vibration, strain, and movement along the line set.

Insulated Copper Pipe

1/4 + 3/8 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 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 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 This 75 ft Insulated Copper Pipe?

Trusted Performance, Durability & Efficiency

With premium copper construction, factory insulation, and an ideal 75 ft length, this insulated copper pipe supports reliable HVAC performance, improved system efficiency, and easier installation — perfect for mini split systems, ductless AC, heat pumps, and other cooling/heating applications.

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.What does “1/2″ x 3/4″” mean in this insulated copper pipe?

It refers to the outer diameters of the two copper tubes — 1/2″ for the liquid line and 3/4″ for the suction line — standard sizes used in many mini split and HVAC systems.

8.Is this insulated copper pipe suitable for outdoor use?

Yes — the UV-resistant factory insulation is designed to withstand outdoor conditions, protecting against sunlight and weather.

9.Do I need extra insulation on site?

No — this line set comes with factory-applied insulation that eliminates the need for additional wrapping in most applications.

10.Is it compatible with R410A and R32 refrigerants?

Yes — this copper tubing and insulation setup is compatible with common modern refrigerants like R410A and R32.