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Professional Copper Line Set Manufacturer Since 2008

INNOVATING HVAC LINE SETS
POWERING GLOBAL COMFORT
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17 Years Factory

We produce the Line Sets by different insulation, like NBR, White PE, K-Flex Titan and Durkflex Insulation.
In April 2023 year we made 3 molds of Air Conditioner Condenser Pad, like 18x38x3",24x24x3", 32x32x3" and 36x36x3".

5 Days For Sample

You will get the free samples delivered once you confirm all details of Insulation Copper Pipe or other HVAC parts within 3-5days.
 
 

1,000,000 PCS Per Month

2 Factories, 50 Electric Welding Machines, 4 Auto-Package Machines, 30000m^2 warehouse, we focus on producing Air Conditioner Lineset, Condenser Pad, Bracket and Lineset Cover. Fast delivery is available within 5-7days, if you are urgent.
 

DABUND PIPE

Refrigeration Copper Pipe
Insulated Copper Tubing
Insulated Copper Pipe
Copper Line Set
AC line set
HVAC Line Set
Mini Split Air Conditioner Kit
Insulated Aluminum Pipe

About DABUND : Your Expert HVAC&R Products Supplier

CHANGZHOU DABUND PIPE CO., LTD. is a supplier of HVAC Line Sets for renowned brands such as Gree/Midea/Daikin and Carrier. We offer 5 Kinds of Insulation Pipes, with our self-produced PE Embossed Insulation Pipe featuring fire-resistant and high-temperature resistance properties, operating within a temperature range of -40℃ to 120℃. Our products utilize North American-certified copper materials with precision tolerances of +/-0.03mm. We provide 5-hour rapid response and 2-hour customized packaging design drawings. With over a decade of collaboration with professional freight forwarders and two warehouses in North America, we guarantee fast shipping within 10 days.
Our main products include HVAC Copper Line Sets, Air Conditioner Brackets (Wall Mounting/Floor Stands), and Lineset Cover Kits (available in various Colors with proprietary designs and models). We also supply other HVAC parts, such as Air Conditioner Cleaning Kits, Electric Whips, Disconnect Boxes and Condenser Pumps. For customers unable to meet MOQ requirements, we procure and maintain inventory to offer One-Stop Solution Services, saving your business at least 30% in costs while Reducing Time, Communication and Container Loading Efforts.
By 2030, our vision is to Help 30 Clients Achieve Annual Sales of $1 Million Each.
Growing hand-in-hand with global partners to build a high-efficiency, sustainable HVAC piping ecosystem.
 

DABUND MAKARON LINE COVER

Gray Air Conditioner Duct Design PVC Line Set Cover Kit
HVAC Line Set Cover
Gray Air Conditioner Duct Design PVC Line Set Cover Kit
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Black PVC Line Set Cover Air Conditioner Line Set Duct Cover
HVAC Line Set Cover
Black PVC Line Set Cover Air Conditioner Line Set Duct Cover
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Custom Beige PVC Line Set Cover Air Conditioning Duct Line Set Pipe Cover
HVAC Line Set Cover
Custom Beige PVC Line Set Cover Air Conditioning Duct Line Set Pipe Cover
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Add to Basket
Blue PVC Line Set Cover Decorative Air Conditioner Cover
HVAC Line Set Cover
Blue PVC Line Set Cover Decorative Air Conditioner Cover
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Add to Basket

Welcome to Visit Our Factory

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Why DABUND is Trusted By 1000+ Global Importers?

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17+ Years’ Experience

We have 17+ years’ experience of copper line set, and have exported 100+ countries.
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Advanced Machine

We are constantly updating our factory machines and strive to produce higher quality products.
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Strong Supply

We have super productivity and can ship in the shortest time.
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Quality Assurance

Our products are of high quality and high standards, deeply loved by customers.
SHIPPING

Fast Shipping

After receiving the order, we will quickly enter the production to ensure that it will be delivered to the customer in the shortest time.
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Good Service

Our products have good after-sales service, our customer service is online 24 hours a day.
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Wide Market

Our products are shipped all over the world and are well recognized by customers.
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Free Sample
Free samples are available in custom design and packaging.
You will get a quick reply within 5 hours from Dabund Pipe.

Customers Installation Case

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1/4'' & 1/2'' Line Set
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1/4 3/8 line set 50 feet long
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3/8 3/4 50' line set
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7/8 3/8 Copper Line Set 35 feet Long
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1/4 3/8 line set 50 feet long
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3/8 3/4 35' line set
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Insulated copper pipe ac installation kit
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Copper Piping Kit for Mini Split Installation
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25 Ft. Copper Pipes for Mini Split Air
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Insulated Copper Tube 1/4" 3/8"
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3/8 Copper tubing 50 ft

Dabund News


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Jun 24,2026
Top 5 HVAC Line Set Manufacturers in the USA

The HVAC industry in the United States continues to grow at an impressive pace. From residential mini split systems to massive commercial cooling projects, one component remains critical to every installation: the HVAC line set. While compressors and air handlers often grab the spotlight, the line s

READ MORE
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Jun 27,2026
How To Test And Replace An AC Disconnect Box

Is your air conditioner acting up?A faulty AC disconnect box could be the hidden culprit behind your cooling troubles.Burnt plastic or corrosion often signals a dangerous electrical failure.Ignoring these signs puts your home and HVAC system at risk.Safety and reliability are our top priorities.

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Jun 24,2026
AC Disconnect Box Wiring Diagram: Complete Installation Guide

Ever wonder how to safely power down your AC for repairs? An AC Disconnect Box is the unsung hero of your HVAC system. It ensures both safety and maintenance ease.Installing one can feel intimidating. Our guide simplifies the process.

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Jun 18,2026
How To Install An AC Disconnect Box: Step-by-Step Guide

Ever wonder how to safely shut off your AC during an emergency?An AC Disconnect Box is essential for your home’s safety. It keeps you protected during routine HVAC maintenance.However, improper wiring can violate NEC Article 440.14 standards.

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Where is the AC Pipe, there is the Dabund Pipe.

We help you avoid the pitfalls to deliver the quality and value your HVAC&R products needs, on-time and on-budget.
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