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Professional Copper Line Set Manufacturer Since 2008

INNOVATING HVAC LINE SETS
POWERING GLOBAL COMFORT
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18 Years Factory

We manufacture line sets with multiple insulation options, like NBR, White PE, K-Flex Titan and Durkflex Insulation.In April 2023 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 3-5 days.
 
 

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 Line set, Condenser Pad, Bracket and Lineset Cover. Fast delivery is available within 5-7 days, for urgent orders, subject to production capacity.

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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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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18+ Years’ Experience

We have 18+ years’ experience of copper line set, and have exported 100+ countries.
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Advanced Manufacturing Equipment

We are constantly updating our factory machines and strive to produce higher quality products.
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Scalable Production Capacity

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, supported by documented inspection procedures.
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 Cases

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1/4'' & 1/2'' Line Set
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1/4 3/8 line set 50 feet long
case3
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
case7
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"
case10
3/8 Copper tubing 50 ft

Dabund News


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[Insulated Copper Pipe Knowledge] Oct 20,2026
Top 10 Air Conditioner Cleaning Cover Manufacturers in America

Have you ever tried to deep-clean a wall-mounted mini-split without the right gear? It starts innocently enough. You spray coil cleaner onto those finned coils, feeling like a professional. And then the brown liquid starts dripping. It runs down the wall, onto the trim, into the floor, and—if you're

READ MORE
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[Insulated Copper Pipe Knowledge] Oct 13,2026
Top 10 Air Conditioner Rubber Pad Factories in America

Have you ever heard an air conditioner rattle, hum, or buzz like a broken washing machine? It's maddening, right? You spend thousands on a high-efficiency system, and then a cheap vibration issue turns your backyard into a noise complaint waiting to happen.Here's the thing nobody tells you: the rubb

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Sep 28,2026
Top 10 Air Conditioner Line Set Factories in America

Let me ask you something—when you walk into a cool room on a triple-digit summer day, do you ever think about the copper tubes hidden inside the walls? Probably not. And honestly, who could blame you?But here's the thing: those humble copper tubes are the arteries and veins of your entire air condit

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[Insulated Copper Pipe Knowledge] Sep 07,2026
Top 10 Insulated Copper Line Set Factories in North America

Let me ask you something—when you're shopping for a new mini split or heat pump, what's the first thing you look at? The BTU rating? The SEER efficiency? The brand name on the outdoor unit?Yeah, I thought so. We all do it. We obsess over the shiny equipment and completely ignore the humble copper tu

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INNOVATING HVAC LINE SET, POWERING GLOBAL COMFORT.

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

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