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DBJ-003
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DABUND
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Copper
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1M - 10M
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1/4" 3/8" 1/2" 5/8" 3/4" 7/8" 1-1/8"
Material
Color
Keywords
Application
MOQ
50 ft 1/4 in. x 3/8 in. AC Installation Kit
DABUND 50 ft 1/4 in. x 3/8 in. AC Installation Kit combines a pre-insulated copper refrigerant line set with essential installation accessories for compatible mini split, ductless AC and heat-pump systems.
The kit includes a 1/4 in. liquid line and 3/8 in. suction line with factory-applied insulation, together with communication wire, condensate drain hose, wall pipe, wall cover and flare nuts.
The 50 ft refrigerant line length equals approximately 15.24 m. The copper tubing is manufactured from 99.9% pure copper and is supplied pre-insulated to reduce additional field insulation work.
Quick Answer: This 50 ft 1/4 x 3/8 AC installation kit provides an insulated copper line set plus the main accessories required for compatible mini split and ductless HVAC installations.
50 ft AC Installation Kit Specifications
| Product Type | Complete AC / Mini Split Installation Kit |
| Line Set Size | 1/4 in. x 3/8 in. |
| Liquid Line | 1/4 in. |
| Suction Line | 3/8 in. |
| Length | 50 ft / 15.24 m |
| Copper Material | 99.9% Pure Copper |
| Insulation | Factory-Applied, UV-Resistant Insulation |
| Featured Insulation | White PE Configuration Shown |
| Included Accessories | Communication wire, drain hose, wall pipe, wall cover and flare nuts |
| Applications | Compatible mini split, ductless AC and heat-pump systems |
| Listed Refrigerants | R410A, R32 and similar compatible HVAC refrigerants |
50 ft AC Installation Kit Video
What Is Included in the Installation Kit?
| Component | Description |
|---|---|
| Refrigerant Line Set | 50 ft 1/4 in. liquid line + 3/8 in. suction line |
| Factory Insulation | Pre-installed insulation around the copper refrigerant tubing |
| Communication Wire | For compatible indoor and outdoor unit electrical communication |
| Drain Hose | For condensate drainage from compatible indoor units |
| Wall Pipe | Protects piping at the wall penetration |
| Wall Cover | Provides a cleaner wall-entry finish |
| Flare Nuts | For compatible refrigerant piping connections |
99.9% Pure Copper Refrigerant Line Set
The refrigerant tubing is manufactured from 99.9% pure copper for compatible HVAC refrigerant piping applications.
Copper provides the flexibility required for routing between indoor and outdoor HVAC equipment while supporting reliable refrigerant transfer.
Always confirm that the HVAC equipment manufacturer specifies a 1/4 in. liquid line and 3/8 in. suction line before ordering.
Factory-Applied Pipe Insulation
Factory-applied insulation helps reduce heat transfer around the refrigerant tubing and helps control surface condensation during HVAC operation.
Pre-insulated tubing also reduces the amount of insulation wrapping required during field installation and provides a more consistent finished line set.
Copper Line Set and Insulation Video
99.9% Pure Copper
White PE Insulated Pipe
Copper Flare Nut
White PE Insulation
The featured product configuration uses White PE insulation around the refrigerant tubing.
The insulation helps limit thermal exchange and surface condensation while providing additional physical protection around the copper line set.
Insulation Production
Insulation Pipe Production
Insulation Pipe Warehouse
Inner Insulation Layer
Complete 50 ft HVAC Installation Package
Combining the insulated copper line set, communication wire, condensate drain hose and wall-entry accessories in one package reduces the number of separate components that need to be sourced for a compatible installation.
The 50 ft length provides additional routing flexibility where the indoor and outdoor HVAC units are separated by a greater distance than shorter standard installation kits.
Available AC Installation Kit Sizes
The following table shows the standard size and production-length options listed for the wider DABUND AC installation kit family. The current product on this page is the 50 ft / 15.24 m 1/4 x 3/8 configuration.
| Line Set Size | Listed Standard Lengths | White PE Insulation | Listed Flame-Resistance Options |
|---|---|---|---|
| 1/4 + 3/8 in. | 3 m / 4 m / 5 m / 7 m / 10 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 1/4 + 1/2 in. | 3 m / 4 m / 5 m / 7 m / 10 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 1/4 + 5/8 in. | 3 m / 4 m / 5 m / 7 m / 10 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 3/8 + 5/8 in. | 3 m / 4 m / 5 m / 7 m / 10 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 3/8 + 3/4 in. | 3 m / 4 m / 5 m / 7 m / 10 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 1/2 + 3/4 in. | 3 m / 4 m / 5 m / 7 m / 10 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 3/8 + 7/8 in. | 3 m / 4 m / 5 m / 7 m / 10 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
General Line Set Size and Capacity Reference
The following capacity ranges are general references from the DABUND installation kit family. Final refrigerant-line sizing must always follow the HVAC equipment manufacturer's specifications.
| 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 |
The 1/4 x 3/8 combination is listed as a general reference for some 0.75–1.0 ton or 9,000–12,000 BTU systems. Always verify the actual liquid-line and suction-line requirements of the equipment being installed.
Compatible HVAC Applications
Ductless mini split air conditioners
Ductless heat-pump systems
Residential HVAC installations
Apartments and multi-family housing
Offices and workshops
Compatible light commercial HVAC projects
Refrigerant Compatibility
The product information lists use with common HVAC refrigerants including R410A and R32.
Final refrigerant compatibility, required line sizes, allowable piping length and system pressure must be confirmed against the specific HVAC equipment manufacturer's technical requirements.
How to Select the Correct AC Installation Kit
Confirm the Refrigerant Line Sizes
Verify that the HVAC equipment requires a 1/4 in. liquid line and 3/8 in. suction line.
Confirm the Required Installation Length
Measure the complete route between the indoor and outdoor units and confirm that the 50 ft line-set length is suitable.
Verify Maximum Permitted Line Length
Check the equipment manufacturer's maximum refrigerant piping length and permitted elevation difference before installation.
Check Additional Refrigerant Requirements
Depending on the HVAC equipment and total line length, additional refrigerant may be required. Follow the manufacturer's charging instructions.
Confirm Communication Wire Requirements
Confirm that the included communication wire specification is suitable for the indoor and outdoor equipment being installed.
Installation Considerations
Plan the Refrigerant Line Route
Plan the complete piping route before installation to reduce unnecessary bends, kinks and mechanical stress on the copper tubing.
Protect Wall Penetrations
Use the included wall pipe and cover where the refrigerant lines pass through the building wall to help protect the insulation from abrasion.
Support Long Line Runs
Use suitable clips, straps or brackets along long piping routes to reduce sagging, vibration and insulation stress.
Follow Equipment Manufacturer Instructions
Refrigerant piping, condensate drainage, electrical connection, evacuation, charging and commissioning should follow the HVAC equipment manufacturer's installation instructions.
DABUND AC Installation Kit Factory
DABUND manufactures insulated copper pipe, mini split line sets, installation kits, aluminum pipe and related HVAC installation products.
Insulation Test Documentation
Applicable insulation configurations are available with test references including ASTM E84, UL94, ASTM D1056 and ASTM G21.
Insulation material and applicable certification can vary by configuration. Buyers requiring specific documentation should confirm the selected insulation material, thickness and corresponding test reports before ordering.
International HVAC Exhibitions
DABUND participates in international HVAC exhibitions where distributors and professional buyers can review AC installation kits, copper line sets and related HVAC installation products.
Frequently Asked Questions
What is included in the 50 ft AC installation kit?
The kit includes a 50 ft 1/4 in. x 3/8 in. pre-insulated copper line set, communication wire, condensate drain hose, wall pipe, wall cover and flare nuts.
What does 1/4 in. x 3/8 in. mean?
It refers to the listed outside diameters of the two refrigerant tubes: 1/4 in. for the liquid line and 3/8 in. for the suction line.
How long is the copper line set?
The line set is 50 ft long, equivalent to approximately 15.24 m.
What copper material is used?
The refrigerant tubing is listed as 99.9% pure copper.
Is the copper line set pre-insulated?
Yes. The copper tubing is supplied with factory-applied insulation.
What insulation configuration is shown?
The featured product images show a White PE insulated configuration.
Does the kit include a drain hose?
Yes. A condensate drain hose is included in the listed accessory package.
Does the kit include communication wire?
Yes. Communication wire is included for compatible indoor and outdoor unit connections.
Are wall-entry accessories included?
Yes. The kit includes a wall pipe and protective wall cover.
What size system can use a 1/4 x 3/8 line set?
The DABUND product family lists 1/4 in. x 3/8 in. as a general reference for some 0.75–1.0 ton or 9,000–12,000 BTU systems. Final refrigerant-line sizing must follow the equipment manufacturer's specifications.
Can every mini split use a 50 ft installation kit?
No. Compatibility depends on the required refrigerant-line dimensions, maximum permitted piping length, connection requirements, communication wiring and other equipment-specific specifications.
Is this kit listed for R410A and R32?
The product information lists R410A and R32 among the compatible refrigerants. Final suitability should be confirmed against the HVAC equipment manufacturer's technical requirements.
Can the insulated lines be used outdoors?
The product information lists UV-resistant insulation for compatible indoor and outdoor line runs. Project-specific insulation requirements should still be confirmed before installation.
Is additional field insulation required?
Factory-applied insulation reduces the need for additional field wrapping, although local codes and specific installation conditions may require additional protection.
What other line set sizes are available?
Listed combinations include 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 in.
Can DABUND provide free samples?
Yes. The listed policy provides up to three free samples for qualified requests, with the buyer paying the express freight. View Sample Information
What payment terms are available?
Available payment methods include T/T, L/C at sight and credit card.
What delivery terms are available?
Available delivery terms include EXW, FOB, CFR and CIF.
Does DABUND support OEM and ODM?
Yes. OEM and ODM services, including logo customization, are available for suitable orders.
What is the typical delivery time?
The listed typical delivery time is approximately 15–20 days, depending on order quantity and production requirements.
