20 ft 1/4″ × 1/2″ Split System Air Conditioner Installation Kit – Complete HVAC Line Set

Premium 20 ft split system air conditioner installation kit with pre-insulated refrigerant lines and essential accessories — engineered for reliable, fast, and energy-efficient HVAC installations.

Product Overview – Ready-to-Install Split AC Line Set Kit

This complete HVAC installation kit includes everything needed to connect your indoor and outdoor split AC units:

• Pre-insulated copper refrigerant lines – 1/4″ (liquid) & 1/2″ (suction)

• Pre-flared ends with nuts for leak-proof connections

• Communication wire cable

• Drain hose

• Wall sleeve and decorative cover

• Installation accessories included

Built for standard split system installations, this kit offers convenience, quality, and dependable performance for residential and light commercial HVAC applications.

Technical Specifications – Designed for Reliable HVAC Performance

HVAC Copper Line Set Details

• Liquid Line Size: 1/4″

• Suction Line Size: 1/2″

• Length: 20 ft (6 m)

• Made from 99.9% pure copper tubing

• Pre-flared ends with matching flare nuts

High-quality copper tubing ensures efficient refrigerant flow, excellent heat transfer, and long service life.

Pre-Insulation Benefits

• High-density insulation reduces heat gain and condensation

• UV and moisture-resistant outer jacket

• Helps maintain consistent system efficiency

• Speeds installation with factory-applied insulation

Pre-insulated tubing delivers improved temperature control and energy performance in variable climates.

Features of pipe insulation tubing:

Key Benefits of This Split System Installation Kit

Ideal for Quick HVAC Installations

This complete kit provides all essential components, reducing on-site preparation and installation time.

Better Cooling & Heating Performance

Pre-insulated lines improve thermal retention, helping your HVAC system reach set temperatures faster with less energy.

Professional-Grade Quality

Premium copper refrigerant lines and precision-fit accessories ensure a reliable, leak-resistant system every time.

Applications – Perfect For Multiple HVAC Uses

This 20 ft installation kit is suitable for:

• Residential split air conditioner installations

• Compact apartments and condos

• Light commercial HVAC applications

• Replacement and retrofit HVAC line installations

Compatible with most split AC and heat pump brands sold in the US and international markets.

Installation Tips for Best Results

To ensure optimal performance and a long-lasting installation:

1. Measure required run length before installation.

2. Verify insulation continuity for thermal stability.

3. Use proper torque on flare nuts to prevent refrigerant leaks.

4. Maintain proper drainage slope on suction lines.

Following these industry best practices helps prevent common HVAC installation issues.

Split System Air Conditioner Installation Kit

Size	Length	Insulation White PE	Flame Resistant
1/4+3/8	3m/4m/5m/7m/10m	8mm/9mm/10mm/13mm/19mm/25.4mm	M1/B1
1/4+1/2	3m/4m/5m/7m/10m	8mm/9mm/10mm/13mm/19mm/25.4mm	M1/B1
1/4+5/8	3m/4m/5m/7m/10m	8mm/9mm/10mm/13mm/19mm/25.4mm	M1/B1
3/8+5/8	3m/4m/5m/7m/10m	8mm/9mm/10mm/13mm/19mm/25.4mm	M1/B1
3/8+3/4	3m/4m/5m/7m/10m	8mm/9mm/10mm/13mm/19mm/25.4mm	M1/B1
1/2+3/4	3m/4m/5m/7m/10m	8mm/9mm/10mm/13mm/19mm/25.4mm	M1/B1
3/8+7/8	3m/4m/5m/7m/10m	8mm/9mm/10mm/13mm/19mm/25.4mm	M1/B1

1/4 + 3/8 Split System Air Conditioner 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 Split System Air Conditioner Installation Kit 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 Split 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 Split 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.

Split System Air Conditioner Installation Kit 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 Split 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 20 ft 1/4" x 1/2" Split System Air Conditioner Installation Kit from DABUND PIPE

We are manufacturer of Split System Air Conditioner 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.Q:What is your payment terms?

A:TT,L/C AT SIGHT,CREDIT CARD etc

2.Q:What is your delivery terms?

A:EXW, FOB, CFR, CIF etc

3.Q:Are you trading company or manufacturer?

A:Manufacturer

4.Q:May I get a sample?

A:Yes, we can send you 3pieces free samples.

   You just charge for the express cost is ok.

5.Q:Can I print my logo?

A:Yes of cause, we accept OEM and ODM.

6.Q:How long is your delivery time?

A:Usually 15-20days, if urgent, we can arrange to do in advance and delivery fast.