3/8 in. x 7/8 in. x 100 ft. Pre-Insulated Copper Tubing for HVAC Systems

Upgrade your HVAC installation projects with premium-quality 3/8 in. x 7/8 in. x 100 ft. pre-insulated copper tubing from DABUND. Designed for professional HVAC contractors, refrigeration installers, and wholesale distributors, this insulated copper line set delivers outstanding thermal efficiency, durability, and long-term performance for residential and commercial air conditioning systems.

Professional Grade 100 ft HVAC Copper Line Set

This 100 ft copper line set features a 3/8" liquid line and a 7/8" suction line, making it ideal for large-capacity ductless mini split systems, VRF systems, heat pumps, and commercial HVAC installations. The extended length allows flexible installation in multi-story buildings, rooftop systems, and long-distance refrigerant routing applications.

99.9% Pure Copper Tube Meets ASTM B280 Standard

Manufactured using 99.9% pure copper, this HVAC copper tubing complies with ASTM B280 and C12200 standards to ensure superior refrigerant flow, high-pressure resistance, and corrosion protection. The seamless copper tube construction enhances system reliability while reducing the risk of refrigerant leakage.

High Pressure Resistance for Modern Refrigerants

Built to withstand pressure ratings from 2100 PSI to 7000 PSI, this insulated copper tubing supports modern refrigerants including R410A and R32 refrigerant systems. It provides stable performance even under demanding cooling and heating cycles.

Factory Pre-Insulated Copper Tubing for Maximum Efficiency

The copper tubing comes with factory-applied UV-resistant insulation that helps reduce thermal loss, improve energy efficiency, and prevent condensation buildup during HVAC operation.

Premium Black Rubber Insulation

The thick 1/2" black rubber insulation provides:

• Excellent thermal insulation

• UV resistance

• Flame retardant protection

• Waterproof performance

• Long-term durability

The insulation material complies with ASTM E84, UL94, ASTM D1056, and ASTM G21 standards. Working temperature ranges from -40℃ to 120℃.

Moisture and Condensation Protection

The closed-cell insulation structure minimizes moisture penetration and condensation formation, helping protect copper tubing from corrosion and extending HVAC system lifespan.

Ideal Applications for 3/8 x 7/8 Copper Tubing

This pre-insulated copper line set is widely used for:

• Ductless mini split air conditioners

• Central air conditioning systems

• VRF and VRV systems

• Heat pumps

• Commercial refrigeration systems

• Rooftop HVAC units

The 3/8" x 7/8" size configuration is commonly recommended for 6 TON to 8 TON HVAC systems and 72,000 BTU to 96,000 BTU air conditioning installations.

99.9% Pure Copper

Black Rubber Insulated Pipe

Plastic Cap

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.

Long-Length 100 ft Copper Line Set for Flexible Installation

The 100 ft insulated copper tubing provides excellent installation flexibility for projects where indoor and outdoor HVAC units are separated by longer distances.

Reduced Refrigerant Leak Risk

Using a continuous long-length copper line minimizes the need for additional fittings and couplings, reducing potential leak points and improving overall system efficiency.

Easier Routing Through Complex Buildings

The flexible copper tubing can be routed through:

• Walls

• Ceilings

• Basements

• Attics

• Commercial structures

This makes installation faster and more convenient for HVAC technicians.

OEM & Custom HVAC Copper Tubing Solutions

DABUND provides complete OEM and ODM services for global HVAC distributors and wholesalers.

Customized Options Available

Customization services include:

• Custom insulation thickness

• Black or white insulation

• Custom packaging

• Private label printing

• Customized line set lengths

• Company logo printing

The insulation can be printed with your company name, product size, and meter markings for branding purposes.

Pre Insulated Copper Tubing

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

1/4 + 1/2 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 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.

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 tubing 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 Pre insulated copper tubing 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 DABUND Pre-Insulated Copper Tubing

Since 2008, DABUND has specialized in manufacturing HVAC copper line sets and refrigeration tubing for global markets.

Key Advantages

• Professional HVAC&R manufacturer

• Large export experience

• Stable production capacity

• Fast shipment support

• Competitive wholesale pricing

• Strict quality control

• International standard compliance

DABUND exports insulated copper tubing worldwide and supports bulk container shipments for HVAC distributors and contractors.

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 3/8 in. x 7/8 in. pre-insulated copper tubing used for?

3/8 in. x 7/8 in. pre-insulated copper tubing is commonly used for large-capacity HVAC systems, ductless mini split air conditioners, VRF systems, heat pumps, and commercial refrigeration applications. It transports refrigerant efficiently between indoor and outdoor units.

2.Is this copper tubing compatible with R410A refrigerant systems?

Yes. This HVAC copper tubing supports modern refrigerants including R410A and R32. The pressure rating ranges from 2100 PSI to 7000 PSI, making it suitable for high-pressure HVAC applications.

3.What standards does the copper tube meet?

The copper tubing complies with ASTM B280 and C12200 standards and uses 99.9% pure copper for excellent thermal conductivity, corrosion resistance, and long service life.

4.What are the advantages of pre-insulated copper tubing?

Pre-insulated copper tubing helps reduce heat loss, improve HVAC efficiency, prevent condensation, and simplify installation. Factory-applied insulation also saves installation time for HVAC contractors.

5.Can the insulation withstand outdoor weather conditions?

Yes. The insulation is UV-resistant, flame-retardant, waterproof, and designed for working temperatures from -40℃ to 120℃, making it suitable for indoor and outdoor HVAC installations.

6.What HVAC system size is suitable for 3/8 x 7/8 copper line sets?

This size is generally suitable for 6 TON to 8 TON HVAC systems and 72,000 BTU to 96,000 BTU ductless mini split air conditioners.

7.Does DABUND provide OEM and custom branding services?

Yes. DABUND offers OEM and ODM services including customized insulation colors, logo printing, private label packaging, and custom copper tubing lengths for wholesalers and distributors.

8.Why is 99.9% pure copper important in HVAC systems?

High-purity copper provides superior thermal conductivity, pressure resistance, and corrosion protection, helping HVAC systems operate more efficiently and reliably over time.

9.Can this insulated copper tubing be used for mini split installations?

Absolutely. This pre-insulated copper tubing is widely used for ductless mini split systems, heat pumps, and residential or commercial air conditioning installations.

10.How does insulated copper tubing improve HVAC efficiency?

The insulation reduces refrigerant temperature loss during operation, helping maintain consistent cooling performance while lowering energy consumption and preventing condensation buildup.