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DBJ-003
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DABUND
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Copper
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1M - 50M
Material
Color
Keywords
Application
100 ft 3/8 in. x 5/8 in. Pre-Insulated Copper Pipe
DABUND 100 ft 3/8 in. x 5/8 in. Pre-Insulated Copper Pipe provides a continuous refrigerant piping solution for compatible mini split air conditioners, heat pumps, central HVAC systems and commercial refrigeration applications.
The paired copper tubing combines a 3/8 in. liquid line with a 5/8 in. suction line and provides a continuous 100 ft length, approximately 30.48 m, for projects requiring an extended refrigerant piping route.
Manufactured from 99.9% C12200 phosphorus-deoxidized copper with ASTM B280 referenced in the source product information, the tubing is supplied with factory-applied insulation for HVAC and refrigeration applications.
Quick Answer: This 100 ft 3/8 x 5/8 pre-insulated copper pipe combines a 9.52 mm liquid line and 15.88 mm suction line with Black Rubber insulation for compatible long-distance HVAC, mini split and refrigeration installations.
100 ft Pre-Insulated Copper Pipe Video
100 ft 3/8 x 5/8 Copper Pipe Specifications
| Product Type | Pre-Insulated HVAC Refrigerant Copper Line Set |
| Pipe Size | 3/8 in. + 5/8 in. |
| Liquid Line | 3/8 in. / 9.52 mm |
| Suction Line | 5/8 in. / 15.88 mm |
| Length | 100 ft / approximately 30.48 m |
| Copper Material | 99.9% C12200 Phosphorus-Deoxidized Copper |
| Copper Standard | ASTM B280 |
| Featured Insulation | Black Rubber shown in product images and family table |
| Other Source-Listed Insulation | Polypropylene / foam configurations are also referenced |
| Listed Temperature Range | -40°C to 120°C; confirm applicability to the exact insulation configuration |
| Source-Listed Pressure Range | 2100–7000 PSI; actual allowable pressure depends on tube dimensions, wall thickness and operating temperature |
| Refrigerant Reference | R410A is referenced; final compatibility must follow the HVAC equipment specification |
| General Capacity Reference | 3.0–4.0 Ton / 36,000–48,000 BTU |
| Applications | Compatible Mini Split / Heat Pump / Central HVAC / Commercial Refrigeration |
100 ft Long-Distance HVAC Refrigerant Line
The 100 ft / 30.48 m continuous coil provides additional routing flexibility for compatible HVAC and refrigeration installations where equipment is separated by a greater distance.
A continuous copper run can reduce unnecessary intermediate joints compared with connecting multiple shorter sections, provided the complete piping route remains within the equipment manufacturer's permitted limits.
Typical applications may include larger residential projects, multi-story buildings, commercial HVAC systems and compatible refrigeration installations.
3/8 in. Liquid Line and 5/8 in. Suction Line
The source configuration identifies the 3/8 in. copper tube as the liquid refrigerant line and the 5/8 in. tube as the suction return line.
Before ordering, verify that the selected mini split, heat-pump, central HVAC or refrigeration equipment specifically requires these exact tube diameters.
Required refrigerant-line sizes vary between equipment manufacturers and models, so nominal tonnage or BTU capacity should not be used as the sole selection criterion.
C12200 Copper with ASTM B280
The source product information specifies 99.9% C12200 phosphorus-deoxidized copper and references ASTM B280 for air-conditioning and refrigeration tubing.
Copper provides thermal conductivity, corrosion resistance and installation flexibility for compatible HVAC and refrigeration piping applications.
Suitable HVAC tube-bending tools and appropriate bend radii should be used to reduce the risk of kinking, flattening or restricting refrigerant flow.
Source-Listed Pressure Capability
The source page lists a pressure range of 2100–7000 PSI for the copper tubing and references high-pressure HVAC refrigerant applications.
Actual allowable working pressure depends on copper tube diameter, wall thickness, operating temperature and the exact tubing configuration. The applicable technical specification should be confirmed before use with a specific HVAC or refrigeration system.
R410A Refrigerant Applications
R410A is referenced on the source page as an application for the insulated copper tubing.
Final refrigerant compatibility must be verified against the HVAC equipment manufacturer's required tubing dimensions, design pressure and installation requirements.
Black Rubber Insulation
Black Rubber insulation is prominently shown in the source product images and wider pre-insulated copper pipe family table.
The insulation provides a thermal barrier and moisture-resistant layer around the copper refrigerant tubing.
Closed-Cell Moisture Protection
The source describes the Black Rubber insulation as helping reduce water-vapor penetration and surface condensation around cold refrigerant piping.
Listed Temperature Range
The source Black Rubber insulation description lists an operating temperature range of approximately -40°C to 120°C. Confirm the applicable rating for the exact insulation configuration ordered.
UV-Resistant Configurations
UV-resistant insulation configurations are referenced on the source page. Final outdoor suitability depends on the exact insulation material, exposure conditions and installation method.
Insulation Structure
The source page describes a protective insulation system with an outer protective surface, a high-density foam layer and an inner closed-cell barrier.
Because several insulation materials are referenced across the source page, buyers should confirm whether this exact multi-layer construction applies to the ordered Black Rubber configuration.
Copper Pipe and Insulation Video

99.9% Pure Copper

Black Rubber Insulated Pipe

Protective Plastic Cap
Black Rubber Insulation Detail

Compatible HVAC and Refrigeration Applications
Compatible ductless mini split air conditioners
Heat-pump systems
Central air-conditioning systems requiring this pipe size
Commercial HVAC systems
Compatible commercial refrigeration applications
Long-distance refrigerant piping installations
Final compatibility must be confirmed from the equipment manufacturer's required liquid-line diameter, suction-line diameter, refrigerant, operating pressure and permitted piping length.
General 36,000–48,000 BTU Capacity Reference
The wider DABUND product family lists the 3/8 in. + 5/8 in. configuration as a general reference for some 3.0–4.0 ton mini split systems.
The corresponding product-family reference is approximately 36,000–48,000 BTU.
These values are general references only. Final refrigerant-line sizing must follow the HVAC equipment manufacturer's exact pipe-size requirements.
Important Checks for a 100 ft Refrigerant Run
Verify Maximum Permitted Piping Length
A physical 100 ft coil does not mean every HVAC system permits a 100 ft installed refrigerant run. Confirm the equipment manufacturer's maximum piping length before installation.
Confirm Exact Refrigerant Pipe Sizes
Verify that the selected equipment specifically requires a 3/8 in. liquid line and 5/8 in. suction line.
Check Maximum Elevation Difference
For installations where indoor and outdoor equipment are positioned at different elevations, verify the manufacturer's maximum permitted vertical separation.
Check Additional Refrigerant Charge
A 100 ft refrigerant run may require additional refrigerant beyond the equipment's factory charge. Follow the manufacturer's charging instructions for the actual installed piping length.
Check Equivalent Piping Length
Bends, fittings and elevation changes can affect equivalent piping length. Follow the HVAC equipment manufacturer's engineering limits rather than relying only on the physical copper length.
Provide Proper Pipe Support
Use suitable HVAC-rated supports, clips or straps to reduce sagging, vibration and mechanical stress along the extended piping route.
Installation Guidelines
Plan the Complete Piping Route
Measure and plan the complete refrigerant route before uncoiling, cutting or modifying the tubing.
Avoid Sharp Bends and Kinks
Use appropriate HVAC tube-bending methods and suitable bend radii to reduce the risk of tube deformation or restricted refrigerant flow.
Protect the Insulation
Avoid crushing, cutting or leaving unnecessary gaps in the insulation around bends, supports and wall penetrations.
Keep Copper Ends Protected
Keep open copper tube ends capped or sealed during storage and installation to reduce moisture and contamination entering the refrigerant circuit.
Pressure Test and Evacuate Before Startup
Refrigerant piping should be pressure-tested, evacuated, charged and commissioned according to the HVAC equipment manufacturer's instructions and applicable local requirements.
Black Rubber Pre-Insulated Copper Line Set

Available Pre-Insulated Copper Pipe Sizes
| Size | Available Lengths | Black Rubber Insulation | Listed Flame-Resistance Options |
|---|---|---|---|
| 1/4 + 3/8 in. | 15 m / 20 m / 25 m / 30 m / 50 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 1/4 + 1/2 in. | 15 m / 20 m / 25 m / 30 m / 50 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 1/4 + 5/8 in. | 15 m / 20 m / 25 m / 30 m / 50 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 3/8 + 5/8 in. | 15 m / 20 m / 25 m / 30 m / 50 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 3/8 + 3/4 in. | 15 m / 20 m / 25 m / 30 m / 50 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 1/2 + 3/4 in. | 15 m / 20 m / 25 m / 30 m / 50 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 3/8 + 7/8 in. | 15 m / 20 m / 25 m / 30 m / 50 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
Length Note: This specific SKU is 100 ft, approximately 30.48 m. The wider family table lists 30 m as the closest standard metric production length, so buyers should specify the exact finished 100 ft configuration when ordering.
General Line Set Size and Capacity Reference
| Line Set Size | General Ton Reference | General BTU Reference |
|---|---|---|
| 1/4 + 3/8 in. | 0.75–1.0 Ton | 9,000–12,000 BTU |
| 1/4 + 1/2 in. | 1.5–2.0 Ton | 12,000–18,000 BTU |
| 1/4 + 5/8 in. | 2.0–2.5 Ton | 24,000–30,000 BTU |
| 3/8 + 5/8 in. | 3.0–4.0 Ton | 36,000–48,000 BTU |
| 3/8 + 3/4 in. | 4.5–6.0 Ton | 54,000–72,000 BTU |
| 3/8 + 7/8 in. | 6.0–8.0 Ton | 72,000–96,000 BTU |
These capacity values are general product-family references only. Final refrigerant-line sizing must follow the HVAC equipment manufacturer's exact requirements.
OEM and Custom Copper Pipe Options
Custom production lengths from approximately 15 m to 50 m or more
Custom insulation thickness
Custom branding and logo printing
Private-label packaging
Bulk supply for distributors and HVAC contractors
OEM and ODM configurations
DABUND Pre-Insulated Copper Pipe Factory
DABUND manufactures pre-insulated copper pipe, mini split line sets and related HVAC components for international distributors, contractors and project buyers.

Insulation Test Documentation
The source certificate section states that applicable Polypropylene or Black Rubber insulation configurations reference ASTM E84, UL94, ASTM D1056 and ASTM G21.
Buyers requiring project-specific compliance documents should confirm the exact insulation material, insulation thickness and corresponding test report for the ordered configuration.

International HVAC Exhibitions
DABUND participates in international HVAC exhibitions where professional buyers can review pre-insulated copper pipe, mini split line sets and related HVAC products.

Frequently Asked Questions
What is a 100 ft 3/8 x 5/8 pre-insulated copper pipe used for?
It is used as refrigerant piping between compatible HVAC or refrigeration equipment requiring a 3/8 in. liquid line and 5/8 in. suction line.
How long is this copper line set?
The product is 100 ft long, approximately 30.48 m.
What size HVAC system can use a 3/8 x 5/8 line set?
The wider DABUND product family lists 3/8 x 5/8 as a general reference for some 3.0–4.0 ton or 36,000–48,000 BTU systems. Final tubing size must follow the equipment manufacturer's exact specification.
What copper material is used?
The source page specifies 99.9% C12200 phosphorus-deoxidized copper and references ASTM B280.
What insulation is shown on this product?
The product images and wider family table prominently show Black Rubber insulation. Other sections also reference Polypropylene or foam insulation configurations.
What insulation thicknesses are available?
The wider Black Rubber product family lists 8 mm, 9 mm, 10 mm, 13 mm, 19 mm and 25.4 mm insulation thickness options.
What is the listed insulation temperature range?
The source page lists approximately -40°C to 120°C. Confirm the applicable range for the exact insulation configuration ordered.
Is this copper pipe compatible with R410A?
R410A is referenced on the source page. Final compatibility must be confirmed against the HVAC equipment manufacturer's refrigerant, pipe-size and design-pressure requirements.
What is the pressure rating?
The source page lists a pressure range of 2100–7000 PSI. Actual allowable pressure depends on tube diameter, wall thickness, operating temperature and exact product configuration.
Can every HVAC system use a 100 ft refrigerant run?
No. Confirm the equipment manufacturer's maximum permitted piping length, maximum elevation difference and refrigerant-charge requirements before installation.
Does a 100 ft refrigerant run require additional refrigerant?
Additional refrigerant may be required depending on the equipment's factory charge and piping allowance. Follow the manufacturer's charging instructions for the actual installed length.
Can this pre-insulated copper pipe be used outdoors?
UV-resistant insulation configurations are referenced on the source page. Final outdoor suitability should be confirmed for the exact insulation material and environmental exposure conditions.
Can the 100 ft copper pipe be shortened?
Yes. The copper tubing can be shortened using appropriate HVAC cutting, deburring and connection procedures while following the equipment manufacturer's requirements.
Can DABUND customize the pre-insulated copper pipe?
Yes. The source page lists custom lengths, insulation thickness, logo printing, private-label packaging and bulk OEM supply options.
Is professional HVAC installation recommended?
Yes. Refrigerant piping should be installed, pressure-tested, evacuated, charged and commissioned according to the HVAC equipment manufacturer's instructions and applicable local requirements.

