25 ft 1/4" x 3/8" AC Installation Kit for Mini Split Systems | Pre-Insulated Copper Line Set Supplier

Upgrade your HVAC installations with this complete 25 ft mini split AC installation kit, designed for fast, reliable, and professional setup. This all-in-one solution includes insulated copper pipes, communication cable, and essential accessories—saving both time and labor costs.

Perfect for 9,000–12,000 BTU (0.75–1 Ton) mini split air conditioners, this kit ensures optimal refrigerant flow and long-term durability.

The AC Installation Kit is twin already. So buy it now.

Complete Mini Split AC Installation Kit – Everything You Need in One Package

This AC installation kit includes:

• Pre-insulated copper line set (1/4" + 3/8", 25 ft)

• Communication wire cable

• 3m drain hose

• Wall sleeve & decorative cover

• Pre-flared ends with nuts for quick connection

No need to source separate components—everything is ready for installation out of the box.

Premium 99.9% Pure Copper Tubing for Maximum Performance

The copper pipes are manufactured using ASTM B280 & C12200 standard copper, ensuring:

• High thermal conductivity

• Excellent pressure resistance

• Leak-free performance

• Long service life

Pure copper means better cooling efficiency and system reliability.

Advanced 3-Layer Insulation for Energy Efficiency & Protection

This insulated copper line set features a triple-layer insulation system:

• Outer Layer: UV-resistant, anti-aging PE film

• Middle Layer: High-density IXPE foam for thermal insulation

• Inner Layer: Closed-cell structure for moisture resistance

✔ Fire-resistant (UL94, ASTM E84 compliant)
✔ Waterproof & corrosion-resistant
✔ Shock absorption & noise reduction

Result: Improved energy efficiency and longer lifespan.

Flexible Insulation Options for Global Markets

Choose the insulation that fits your project:

• White PE Insulation: 8mm–25.4mm thickness

• Black Rubber Insulation: 13mm–25.4mm thickness

Suitable for different climates, including humid, coastal, and extreme environments.

Designed for Fast & Easy HVAC Installation

✔ Pre-flared copper pipe ends
✔ Ready-to-connect fittings
✔ Flexible tubing for easy routing

Reduce installation time and labor costs significantly.

This kit is ideal for:

• Residential HVAC installers

• Contractors & technicians

• HVAC distributors

99.9% Pure Copper

White PE Insulated Pipe

Copper Nut

Features of pipe insulation tubing:

Machines for the production of thermal insulation pipes

warehouse for insulation pipes

Inner Layer Insulated Pipe

Wide Application for Mini Split Air Conditioning Systems

This 1/4" + 3/8" line set is commonly used for:

• 0.75 Ton – 1 Ton mini split AC

• 9000 BTU – 12000 BTU systems

Compatible with:

• Ductless mini split systems

• Heat pumps

• VRF systems

Why Choose a Professional AC Installation Kit Manufacturer?

• 14+ years HVAC manufacturing experience

• Large production capacity (1,000,000 pcs/month)

• Strict quality control & SGS-certified materials

• Fast sample delivery & global export support

Reliable supply means you never delay your projects.

OEM & ODM AC Installation Kit Supplier for Wholesale Buyers

Looking to grow your brand?

We support:

• Custom length (3m–10m)

• Logo printing & packaging

• Private label solutions

• Bulk orders with competitive pricing

Perfect for importers, wholesalers, and HVAC brands.

AC Installation Kit

1/4 + 3/8 AC Installation Kit 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 Mini Split Installation Kit 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 AC Installation Kit 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 AC Installation Kit 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 line set kit used for 54000 BTU and 72000 split air conditioner installation.

3/8 + 7/8 Mini Split Installation Kit 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.

Mini Split Installation Kit 1/4 + 1/2 commonly used for 12K and 18K mini split air conditioners.

1/4 + 5/8 AC Installation Kit 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 Line set kit 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 25 ft 1/4" x 3/8" AC Installation Kit from DABUND PIPE

We are manufacturer of AC Installation Kit 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 included in a 25 ft AC installation kit?

A standard AC installation kit includes insulated copper pipes (liquid and suction line), communication cable, drain hose, wall sleeve, and installation accessories. This all-in-one solution simplifies HVAC installation and reduces sourcing time.

2.What size AC unit is compatible with a 1/4" x 3/8" line set?

A 1/4" x 3/8" copper line set is typically used for 9,000 to 12,000 BTU (0.75–1 Ton) mini split air conditioners, making it ideal for residential cooling systems.

3.Why is insulated copper pipe important in HVAC systems?

Insulated copper pipes prevent energy loss, reduce condensation, and improve overall system efficiency. High-quality insulation also protects against corrosion, UV exposure, and temperature fluctuations.

4.What is the best insulation material for AC copper pipes?

The most common insulation materials are PE (polyethylene) and rubber insulation, both offering excellent thermal resistance, flexibility, and moisture protection depending on the application environment.

5.Are pre-flared copper pipes better for installation?

Yes. Pre-flared copper pipes with nuts allow for faster and more secure connections, reducing installation errors and saving labor time.

6.Can I customize AC installation kits for my brand?

Yes, professional manufacturers offer OEM & ODM services, including custom lengths, insulation types, packaging, and logo printing—ideal for wholesalers and distributors.

7.How do I choose a reliable AC installation kit supplier?

Look for suppliers with:

• Certified materials (ASTM, UL, SGS)

• Strong production capacity

• OEM/ODM capabilities

• Export experience

These factors ensure consistent quality and reliable delivery.

8.What are the advantages of using a complete HVAC installation kit?

Using a complete kit:

• Saves installation time

• Reduces compatibility issues

• Improves efficiency

• Lowers overall project costs