DBJ-003
DABUND
Copper
1M - 10M
1/4,3/8,1/2,5/8,3/4,7/8,1,1-1/8
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This 10 ft 3/8" x 3/4" mini split kit includes everything required for installing high-capacity ductless air conditioning systems:
Pre-insulated copper refrigerant line set (3/8″ liquid line + 3/4″ suction line)
Pre-flared ends with nuts for leak-free connection
Communication wire (US standard compatible)
Flexible drain hose
Wall sleeve pipe & decorative wall cap
Protective wrapping and accessories
Designed for use in residential and light commercial HVAC projects throughout the US.
99.9% pure copper
Meets ASTM B280 standard for air conditioning and refrigeration
Compatible with R410A, R32, and other common US refrigerants
High pressure resistance for modern high-efficiency systems
This ensures reliability and compliance with US building codes and HVAC industry standards.
UV-resistant insulation suitable for hot states like Texas, Florida, Arizona
Cold-weather flexibility for northern states
Fire-retardant materials meeting ASTM E84
Condensation control to prevent moisture damage
Available in multiple insulation thickness options for different US climate requirements.
This 3/8″ × 3/4″ configuration is commonly used for:
High-capacity ductless mini split systems
Multi-zone heat pump installations
VRF and light commercial HVAC systems
Ideal for contractors installing systems in homes, offices, retail spaces, and apartment complexes.
● Pipe Insulation, Material Black Rubber, Temp Range -40 Degrees to 120 Degrees.
● The pipe insulation has a better function of moisture condensation. Insulation material is both the insulation layer and moisture-proof layer.
● There is no need to drop the water vapor permeation protective layer so that it has a better moisture condensation function.

Pre-flared connections reduce onsite preparation
Flexible copper for easier routing
Saves installation time on every job
Manufactured by DABUND, a global HVAC&R parts supplier since 2008:
OEM & private label service available
Bulk pricing for US importers and distributors
Stable annual production capacity (millions of line sets shipped worldwide)
Export-ready packaging for US market compliance
Liquid Line: 3/8 inch
Suction Line: 3/4 inch
Length: 10 ft (3 meters)
ASTM B280 compliant
C12200 phosphorus-deoxidized copper
UV resistant PE or black rubber insulation
Operating temperature: -40°F to 248°F
This mini split installation kit is suitable for:
Residential HVAC installation
Apartment & multi-family housing
Commercial light HVAC systems
Heat pump installations
Replacement line set projects
Compatible with most major ductless AC brands sold in the United States.

Size | Length | Insulation Black Rubber | 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.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.
Yes. The 3/8″ × 3/4″ copper line configuration is commonly used in high-capacity mini split and heat pump systems sold in the US. Always verify system tonnage and manufacturer specifications.
The copper tubing meets ASTM B280 standards, which are widely required in US HVAC installations. Insulation options meet fire safety standards such as ASTM E84.
Yes. Bulk orders, OEM branding, and custom packaging are available for US importers and HVAC distributors.
This 10 ft 3/8" x 3/4" mini split kit includes everything required for installing high-capacity ductless air conditioning systems:
Pre-insulated copper refrigerant line set (3/8″ liquid line + 3/4″ suction line)
Pre-flared ends with nuts for leak-free connection
Communication wire (US standard compatible)
Flexible drain hose
Wall sleeve pipe & decorative wall cap
Protective wrapping and accessories
Designed for use in residential and light commercial HVAC projects throughout the US.
99.9% pure copper
Meets ASTM B280 standard for air conditioning and refrigeration
Compatible with R410A, R32, and other common US refrigerants
High pressure resistance for modern high-efficiency systems
This ensures reliability and compliance with US building codes and HVAC industry standards.
UV-resistant insulation suitable for hot states like Texas, Florida, Arizona
Cold-weather flexibility for northern states
Fire-retardant materials meeting ASTM E84
Condensation control to prevent moisture damage
Available in multiple insulation thickness options for different US climate requirements.
This 3/8″ × 3/4″ configuration is commonly used for:
High-capacity ductless mini split systems
Multi-zone heat pump installations
VRF and light commercial HVAC systems
Ideal for contractors installing systems in homes, offices, retail spaces, and apartment complexes.
● Pipe Insulation, Material Black Rubber, Temp Range -40 Degrees to 120 Degrees.
● The pipe insulation has a better function of moisture condensation. Insulation material is both the insulation layer and moisture-proof layer.
● There is no need to drop the water vapor permeation protective layer so that it has a better moisture condensation function.

Pre-flared connections reduce onsite preparation
Flexible copper for easier routing
Saves installation time on every job
Manufactured by DABUND, a global HVAC&R parts supplier since 2008:
OEM & private label service available
Bulk pricing for US importers and distributors
Stable annual production capacity (millions of line sets shipped worldwide)
Export-ready packaging for US market compliance
Liquid Line: 3/8 inch
Suction Line: 3/4 inch
Length: 10 ft (3 meters)
ASTM B280 compliant
C12200 phosphorus-deoxidized copper
UV resistant PE or black rubber insulation
Operating temperature: -40°F to 248°F
This mini split installation kit is suitable for:
Residential HVAC installation
Apartment & multi-family housing
Commercial light HVAC systems
Heat pump installations
Replacement line set projects
Compatible with most major ductless AC brands sold in the United States.

Size | Length | Insulation Black Rubber | 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.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.
Yes. The 3/8″ × 3/4″ copper line configuration is commonly used in high-capacity mini split and heat pump systems sold in the US. Always verify system tonnage and manufacturer specifications.
The copper tubing meets ASTM B280 standards, which are widely required in US HVAC installations. Insulation options meet fire safety standards such as ASTM E84.
Yes. Bulk orders, OEM branding, and custom packaging are available for US importers and HVAC distributors.