100 ft 1/4" x 3/8" Pre-Insulated Copper Pipe for HVAC | Mini Split Refrigerant Line Set Supplier

Looking for a high-quality, long-distance HVAC copper line solution?
This 100 ft 1/4" x 3/8" pre-insulated copper pipe is designed for mini split air conditioners and refrigeration systems, delivering reliable performance, easy installation, and long-term durability.

Perfect for 9,000–12,000 BTU (0.75–1 Ton) systems, it ensures efficient refrigerant flow across extended distances.

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

100 ft Long Copper Line Set for Flexible HVAC Installations

This extra-long 100 ft copper pipe is ideal for:

• Long-distance installations

• Residential HVAC systems

• Complex piping layouts

Provides installation flexibility without sacrificing efficiency

99.9% Pure Copper Tubing (ASTM B280 & C12200 Standard)

Manufactured using high-purity copper, this pipe offers:

• Excellent thermal conductivity

• High pressure resistance

• Leak-proof and durable performance

✔ Meets ASTM B280 & C12200 standards

Ensures stable performance and longer system lifespan

High Pressure Rating for Modern Refrigerants (R410A / R32 Compatible)

Built for advanced HVAC systems:

• Pressure rating: 2100–7000 PSI

• Suitable for high-efficiency refrigerants

• Reliable under demanding conditions

Designed for next-generation air conditioning systems

Advanced Pre-Insulated Copper Pipe for Energy Efficiency

This pipe features high-density insulation that:

• Reduces heat loss

• Prevents condensation

• Maintains refrigerant temperature

✔ Working temperature range: -40°C to 120°C

Improves overall HVAC efficiency

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

UV-Resistant & Fire-Rated Insulation for Outdoor Applications

Engineered for durability:

• UV-resistant outer layer

• Flame-retardant (UL94, ASTM E84 compliant)

• Moisture-proof and corrosion-resistant

Suitable for both indoor and outdoor installations

Ideal Size for Mini Split Systems (9K–12K BTU)

This configuration includes:

• 1/4" liquid line

• 3/8" suction line

Commonly used for:

• 0.75–1 Ton systems

• 9,000–12,000 BTU mini split AC

Ensures optimal refrigerant flow and system efficiency

3-Layer Insulation Structure for Maximum Durability

Engineered with advanced insulation:

• Outer Layer: UV-resistant PE film

• Middle Layer: IXPE foam insulation

• Inner Layer: Closed-cell moisture barrier

✔ Waterproof
✔ Anti-corrosion
✔ Noise reduction
✔ Shock absorption

Built for long-term performance in harsh environments

Compatible with Multiple HVAC & Refrigeration Applications

Widely used in:

• Ductless mini split systems

• Heat pumps

• Central air conditioning

• Refrigeration systems

One versatile solution for all HVAC applications

Flexible Copper Tubing for Easy Installation

✔ Soft annealed copper for easy bending
✔ Twin-line design (liquid + suction line)
✔ Pre-insulated for faster setup

Saves time and reduces labor costs

Full Size Range & Custom Length Options Available

We support OEM customization:

• Sizes: 1/4" – 1 1/8"

• Lengths: 15m / 20m / 25m / 30m / 50m / 100 ft

• Insulation thickness options

Ideal for wholesale and project-based supply

OEM & ODM Pre-Insulated Copper Pipe Manufacturer

Grow your business with:

• Private label branding

• Logo printing on insulation

• Custom packaging

• Bulk production support

Perfect for distributors, importers, and HVAC brands

Designed for Global HVAC Markets & Harsh Environments

This copper pipe performs reliably in:

• Tropical climates (humidity resistance)

• Desert regions (heat resistance)

• Coastal areas (corrosion protection)

Built for worldwide applications

HVAC Line Set Size Selection Guide

• 1/4" + 3/8" → 9K–12K BTU (This Product)

• 1/4" + 1/2" → 12K–18K BTU

• 1/4" + 5/8" → 24K–30K BTU

• 3/8" + 5/8" → 36K–48K BTU

• 3/8" + 7/8" → 72K–96K BTU

Helps buyers quickly select the correct size

Reduce Installation Failures & Improve HVAC Efficiency

Using high-quality copper pipe helps:

✔ Prevent refrigerant leaks
✔ Reduce energy loss
✔ Improve cooling efficiency
✔ Extend system lifespan

Small component, big impact on performance

Get a Quote for 100 ft 1/4" x 3/8" Pre-Insulated Copper Pipe

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Start your project with confidence

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 Pre-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 100 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.What is a 100 ft 1/4" x 3/8" pre-insulated copper pipe used for?

This copper pipe is used in HVAC systems to connect indoor and outdoor units, typically for 9,000–12,000 BTU mini split air conditioners, ensuring efficient refrigerant flow over long distances.

2.Why choose a 100 ft copper line set instead of shorter lengths?

A 100 ft line set is ideal for installations where the distance between units is long, such as multi-story buildings or complex layouts, providing greater flexibility.

3.What standards should HVAC copper pipes meet?

High-quality copper pipes should meet ASTM B280 and C12200 standards, ensuring durability, pressure resistance, and compatibility with HVAC systems.

4.Why is insulation important for copper pipes in HVAC systems?

Insulation reduces heat transfer, prevents condensation, and protects the pipe from environmental damage, improving system efficiency and lifespan.

5.Is this copper pipe compatible with R410A and R32 refrigerants?

Yes. This pipe is designed for modern refrigerants such as R410A and R32, thanks to its high pressure rating and durable construction.

6.Can I customize the copper pipe for my brand or project?

Yes. Manufacturers provide OEM & ODM services, including custom length, insulation thickness, logo printing, and packaging for bulk orders.

7.What are the benefits of pre-insulated copper pipes?

Pre-insulated pipes:

• Save installation time

• Improve energy efficiency

• Reduce condensation issues

• Lower installation costs

8.How long does a pre-insulated copper pipe last?

A high-quality copper pipe can last 15–20 years or more, depending on installation quality and environmental conditions.