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DBJ-003
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DABUND
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Copper
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1M - 10M
Material
Color
Keywords
Application
50 Ft 3/8" x 3/4" Mini Split Installation Kit
DABUND 50 Ft 3/8" x 3/4" Mini Split Installation Kit is designed for compatible ductless mini split, heat pump and HVAC installations requiring 3/8" and 3/4" insulated copper refrigerant lines.
The current product configuration uses a 50 ft line set, equivalent to approximately 15.24 m, with 3/8" and 3/4" copper tubing and 1/2" Black Rubber insulation. Both copper tube ends are supplied with flaring and nuts according to the current product information.
The kit can also include related installation accessories such as communication wire cable, drain hose, wall pipe and wall cover according to the selected configuration.
Quick Answer: This is a 50 ft / 15.24 m mini split installation kit using 3/8" + 3/4" insulated copper tubing with 1/2" Black Rubber insulation for compatible HVAC systems.
Important Compatibility Notice: A 50 ft refrigerant line is a relatively long installation run. Before ordering or installation, verify the required pipe sizes, maximum actual and equivalent piping length, vertical separation, factory refrigerant charge, additional refrigerant requirements and long-line instructions for the exact air conditioner or heat pump model.
50 Ft 3/8" x 3/4" Line Set Specifications
| Product Type | Mini Split Installation Kit |
| Refrigerant Line Size | 3/8" + 3/4" |
| Metric Tube OD | Approx. 9.52 mm + 19.05 mm |
| Length | 50 ft / approx. 15.24 m |
| Current SKU Insulation | 1/2" Black Rubber |
| Copper Tube | ASTM B280 / C12200 DHP referenced in current product information |
| Tube Ends | Flared ends with nuts according to current product information |
| Listed Insulation Temperature Range | -40°C to 120°C for the Black Rubber insulation described on the current page |
| Application | Compatible mini split, heat pump and HVAC installations |
ASTM B280 Copper Refrigerant Line
The current product information references ASTM B280 and C12200 DHP for the copper tubing used within the DABUND line set range.
For the current SKU, the refrigerant line combination is 3/8" + 3/4", corresponding to approximately 9.52 mm + 19.05 mm outside diameter.
Copper Refrigerant Tubing
Black Rubber Insulation
Flared Tube Ends
1/2" Black Rubber Insulation
The current 50 ft 3/8" x 3/4" product is identified with 1/2" Black Rubber insulation.
The current product information describes the Black Rubber insulation as providing thermal insulation and moisture-condensation control around the copper refrigerant piping.
Closed-Cell Insulation Structure
The insulation is described as using a dense closed-cell structure intended to reduce heat transfer and help limit moisture penetration.
Condensation Control
The insulation layer is intended to reduce surface condensation around the refrigerant tubing when operating conditions create a temperature difference between the pipe and surrounding air.
Listed Temperature Range
The current product information lists a temperature range of approximately -40°C to 120°C for the Black Rubber pipe insulation described on this page.
Flared Copper Ends With Nuts
According to the current product information, both copper tube ends are supplied with flaring and nuts.
Before installation, verify that the flare dimensions, nut size and connection specification match the service valves and indoor-unit connections of the exact HVAC equipment.
50 Ft Mini Split Installation Kit Components
The current product description identifies the insulated copper line set as part of a mini split installation kit that can include related installation accessories.
| 3/8" + 3/4" Insulated Copper Line Set | 50 ft / approx. 15.24 m |
| Black Rubber Insulation | 1/2" for current product configuration |
| Communication Wire Cable | Listed as an installation-kit accessory; confirm exact specification before ordering |
| Drain Hose | 3 m listed in the current product information |
| Wall Pipe | Listed as an installation-kit accessory |
| Wall Cover | Listed as an installation-kit accessory |
Confirm the exact accessory package supplied with the current 50 ft configuration before purchase, especially the communication cable specification and accessory quantities.
Available Mini Split Line Set Sizes
The current SKU is 3/8" + 3/4". DABUND's broader Mini Split Installation Kit range includes multiple copper tube-size combinations and insulation options.
| Size | General Length Options | Black Rubber Insulation Options Listed in Range Table | Listed Flame-Resistant Options |
| 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 | Current SKU: 50 ft / 15.24 m; general range table: 3m / 4m / 5m / 7m / 10m | Current SKU: 1/2" Black Rubber; broader range table also lists multiple thickness options | M1 / B1 listed in range table |
| 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 |
Is 3/8" x 3/4" the Correct Line Set Size?
The 3/8" + 3/4" line combination is used by selected air-conditioning and heat-pump systems.
The current DABUND product information associates this size combination with some approximately 4.5–6 ton or 54,000–72,000 BTU systems.
This is only a general reference and must not be used as the sole selection rule. Refrigerant line dimensions vary by equipment manufacturer, system design, model and installation conditions.
Always verify the required liquid-line and suction-line dimensions in the installation manual for the exact indoor and outdoor unit combination.
Important Considerations for a 50 Ft Refrigerant Line
Check Maximum Piping Length
A 50 ft line set is approximately 15.24 m long. Confirm that this length is within the maximum actual and equivalent piping limits specified by the HVAC equipment manufacturer.
Check Vertical Separation
When the indoor and outdoor units are installed at different elevations, confirm the permitted vertical separation for the exact system.
Check Factory Refrigerant Charge
Many HVAC systems include a factory refrigerant charge designed for a specified standard line length. A longer installation may require additional refrigerant according to the equipment manufacturer's instructions.
Follow Long-Line Instructions
If the equipment manufacturer provides special long-line installation requirements, follow those requirements for piping, refrigerant charge, oil management and system commissioning.
Confirm the Correct Pipe Sizes
Do not select this 3/8" + 3/4" line set only by system capacity. Confirm the exact specified refrigerant line diameters before ordering.
Insulation Testing and Documentation
The current product information references ASTM E84, UL 94, ASTM D1056 and ASTM G21 testing for selected insulation configurations within the DABUND product range.
It also references ASTM C1427-07 and UL 723 information for selected insulation products.
Applicable insulation material, test reports, thickness and certification scope should be confirmed for the exact ordered 50 ft 3/8" x 3/4" configuration.
For HVAC Distributors, Wholesalers and Contractors
DABUND supplies Mini Split Installation Kits, insulated copper line sets and related HVAC installation components to distributors, wholesalers, importers and professional contractors.
Buyers sourcing 50 ft line sets should confirm the required tube size, insulation specification, accessory package, flare configuration, cable requirement and target HVAC equipment before placing a bulk order.
OEM and ODM Mini Split Installation Kits
DABUND accepts OEM and ODM requirements for compatible Mini Split Installation Kit configurations.
Multiple copper line size combinations
Different line-set lengths
White PE or Black Rubber insulation configurations
Multiple insulation thickness options
Installation accessory configurations
Packaging and private-label requirements
Why Choose DABUND Mini Split Installation Kits?
HVAC Manufacturing Experience Since 2008
DABUND has manufactured and supplied insulated copper piping, mini split line sets and related HVAC components since 2008 for international B2B buyers.
Multiple Line Set Sizes
The DABUND product range includes multiple liquid-line and suction-line combinations for different compatible HVAC systems.
Multiple Insulation Configurations
White PE and Black Rubber insulation configurations are listed within the broader product range, with the current 50 ft 3/8" x 3/4" SKU identified with 1/2" Black Rubber insulation.
DABUND Factory
DABUND produces insulated copper pipe, mini split line sets, aluminum pipe and related HVAC parts for international professional buyers.
Product Testing Documentation
The current product information references ASTM E84, UL94, ASTM D1056 and ASTM G21 for selected insulation products. Confirm the applicable report and scope for the exact ordered configuration.
International HVAC Exhibitions
DABUND presents Mini Split Installation Kits, line sets and related HVAC products to professional buyers at international exhibitions.
Frequently Asked Questions
What size is this mini split line set?
The current product uses 3/8" + 3/4" copper tubing, approximately 9.52 mm + 19.05 mm outside diameter.
How long is the line set?
The current SKU is 50 ft long, approximately 15.24 m.
What insulation does the 50 ft line set use?
The current product information identifies this 50 ft 3/8" x 3/4" configuration with 1/2" Black Rubber insulation.
Are the copper tube ends flared?
Yes. The current product information states that both copper tube ends are flared and supplied with nuts.
What copper specification is referenced?
The current product information references ASTM B280 and C12200 DHP copper tubing.
What AC capacity commonly uses 3/8" x 3/4" piping?
The current product information associates this pipe combination with some approximately 4.5–6 ton or 54,000–72,000 BTU systems. This is only a general reference; always verify the required line sizes for the exact equipment model.
Can I choose this line set only according to BTU capacity?
No. Always verify the required liquid-line and suction-line dimensions in the equipment manufacturer's installation manual.
Is a 50 ft line set suitable for every mini split?
No. The equipment must permit both the 3/8" + 3/4" pipe sizes and the approximately 50 ft piping length.
Does a 50 ft line set require additional refrigerant?
It depends on the HVAC equipment. Check the manufacturer's factory-charge length and additional-refrigerant instructions for the exact model.
Does vertical separation matter with a 50 ft line set?
Yes. Confirm the maximum permitted vertical separation between indoor and outdoor units in the equipment manufacturer's installation instructions.
What accessories are included with the installation kit?
The current product information lists the insulated copper line set together with communication wire cable, a 3 m drain hose, wall pipe, wall cover and related installation accessories. Confirm the exact package configuration before ordering.
What other copper line sizes are available?
The broader product range lists 1/4" + 3/8", 1/4" + 1/2", 1/4" + 5/8", 3/8" + 5/8", 3/8" + 3/4", 1/2" + 3/4" and 3/8" + 7/8" combinations.
Is White PE insulation also available?
White PE and Black Rubber insulation configurations are both listed within the broader DABUND product range. The current 50 ft SKU is identified with 1/2" Black Rubber insulation.
Can DABUND provide OEM or ODM mini split installation kits?
Yes. OEM and ODM requirements can be discussed according to line size, length, insulation configuration, accessories, packaging and commercial order requirements.
Can I get samples before placing a bulk order?
According to the current product information, DABUND can provide three sample pieces, with the buyer covering express shipping costs. View sample information.
What payment terms are available?
Available payment methods can include T/T, L/C at sight and credit card. Final payment terms depend on the commercial agreement.
What delivery terms are available?
Available international trade terms can include EXW, FOB, CFR and CIF.
What is the typical delivery time?
Current product information lists a typical delivery period of approximately 15–20 days. Actual lead time depends on quantity, product specification, accessory configuration, customization and production schedule.
