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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
30 Ft 3/8" x 5/8" Split AC Installation Kit
The DABUND 30 ft 3/8" x 5/8" Split AC Installation Kit is a complete HVAC installation package designed for compatible mini split air conditioners, heat pumps and split AC systems. The kit combines a pre-insulated copper refrigerant line set with communication cable, drain hose, wall sleeve, wall cover and other installation accessories.
The paired copper tubing includes a 3/8" tube and a 5/8" tube with a total length of 30 ft, approximately 9.14 m. The copper tubes can be supplied with factory-prepared flared ends and flare nuts to simplify connection during compatible HVAC installations.
Manufactured from C12200 DHP copper for HVACR applications, the refrigerant tubing is available according to ASTM B280 specifications. DABUND also offers white PE and black rubber insulation options with multiple thicknesses for distributors, wholesalers, HVAC contractors and OEM customers.
Compatibility Notice: A 3/8" x 5/8" refrigerant line set is not compatible with every air conditioner of the same BTU or tonnage. Always verify the required tube diameters, maximum piping length, insulation requirements and refrigerant charging instructions in the HVAC equipment manufacturer's installation manual before ordering.
What Is Included in the 30 Ft Split AC Installation Kit?
The standard mini split installation kit combines the primary refrigerant piping and installation accessories into one package, helping HVAC distributors and contractors reduce separate sourcing and simplify project preparation.
30 ft / approximately 9.14 m insulated copper line set
3/8" copper refrigerant tube
5/8" copper refrigerant tube
Factory-prepared flared ends with flare nuts
Communication / control wire cable
Drain hose
Wall sleeve and wall cover
Related mini split AC installation accessories
The exact cable specification, drain hose length, insulation material, insulation thickness, accessory combination and packaging can be customized according to the buyer's requirements.
30 Ft 3/8" x 5/8" AC Line Set Specifications
| Product Type | Split AC / Mini Split Installation Kit |
| Tube Size | 3/8" + 5/8" |
| Metric Outside Diameter | Approximately 9.52 mm + 15.88 mm |
| Kit Length | 30 ft / approximately 9.14 m |
| Copper Material | C12200 DHP Copper |
| Copper Tube Standard | ASTM B280 specification available |
| Tube Ends | Pre-flared ends with flare nuts |
| Insulation Options | White PE / Black Rubber |
| PE Insulation Thickness | 8 mm / 9 mm / 10 mm / 13 mm / 19 mm / 25.4 mm options |
| Black Rubber Thickness | 13 mm / 17 mm / 19 mm / 25.4 mm options |
| Applications | Compatible mini split AC, split air conditioner, heat pump and HVACR systems |
| Customization | Tube size, length, insulation, cable, accessories, printing and packaging |
Key Features of the 30 Ft Mini Split Installation Kit
C12200 Copper Tubing for HVACR Applications
The refrigerant piping is manufactured from C12200 DHP copper for air-conditioning and refrigeration applications. ASTM B280 copper tube specifications are available according to the ordered configuration.
3/8" x 5/8" Paired Refrigerant Tubing
The kit contains paired 3/8" and 5/8" copper tubes. On compatible HVAC equipment, the smaller tube commonly functions as the liquid line and the larger tube as the suction or gas line. Final piping configuration must follow the equipment manufacturer's specifications.
Factory-Prepared Flared Connections
The copper tube ends can be supplied with factory-prepared flares and flare nuts, reducing field preparation and helping professional HVAC installers complete compatible flare connections efficiently.
White PE and Black Rubber Insulation
DABUND offers both white PE and black rubber insulation. Multiple insulation thicknesses are available so distributors and project buyers can select a configuration according to climate, installation environment and target-market requirements.
Complete HVAC Installation Package
Refrigerant tubing, communication cable, drain hose and wall accessories can be supplied together as one installation kit, reducing the number of separate components that HVAC contractors, wholesalers and distributors need to purchase.
OEM and Private-Label Supply
DABUND supports OEM and ODM customization including refrigerant tube sizes, kit lengths, insulation thickness, printed branding, communication cable specifications, accessory combinations and private-label packaging.
High-Purity Copper Tubing
Black Rubber Insulated Pipe
Factory-Prepared Flaring
HVAC Pipe Insulation Performance
The closed-cell insulation surrounding the refrigerant tubing is designed to reduce thermal transfer, control condensation and help protect the copper pipes during transportation, installation and operation.
Closed-cell construction helps reduce moisture penetration.
Low thermal conductivity helps limit heat transfer.
Insulation functions as both a thermal layer and moisture barrier.
UV-resistant insulation options are available for exposed installations.
Multiple insulation thicknesses are available for different project requirements.
Selected black rubber insulation specifications support operating temperatures from approximately -40°C to 120°C.
Thermal Insulation
High-density closed-cell insulation helps limit heat transfer between the refrigerant piping and surrounding environment, supporting stable refrigerant conditions in correctly designed HVAC systems.
Condensation Control
The closed-cell insulation structure helps reduce water-vapor penetration and condensation on cold refrigerant lines when the insulation thickness and installation method are appropriate for the application.
Flame-Retardant and UV-Resistant Options
DABUND can provide insulation specifications with testing related to ASTM E84, UL 94, ASTM D1056 and ASTM G21. Buyers should confirm the exact material, test report and certification requirements for their target market before ordering.
30 Ft Split AC Installation Kit for HVAC Wholesalers
The 30 ft 3/8" x 5/8" Split AC Installation Kit is designed for B2B buyers including HVAC wholesalers, distributors, importers, contractors, project suppliers and private-label air-conditioning brands.
By combining the insulated refrigerant line set and related installation accessories into one package, distributors can simplify inventory management while contractors receive a coordinated group of components for compatible mini split installations.
DABUND can customize kit configuration, line length, tube diameter, insulation material, cable specification, drainage accessories, printed branding and export packaging for volume orders.
Available Split AC Installation Kit Sizes
In addition to the 3/8" + 5/8" configuration, DABUND supplies multiple refrigerant tube combinations, lengths and insulation thicknesses for different HVAC markets and equipment specifications.
| Size | Available Length | Black Rubber Insulation | 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 | 30 ft / 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 |
Is a 3/8" x 5/8" Line Set Compatible With My AC?
A 3/8" x 5/8" refrigerant line set is used by certain mini split, heat pump and split air-conditioning systems. However, refrigerant tube size should never be selected solely according to nominal BTU capacity or tonnage.
Before purchasing this 30 ft installation kit, verify that the connected equipment specifies 3/8" and 5/8" refrigerant tubing. Also confirm the permitted total piping length, maximum vertical separation, required insulation thickness, flare dimensions and any additional refrigerant charge.
Some HVAC systems may use a 3/8" liquid line with a 5/8" suction line, but the final configuration must match the specific indoor and outdoor equipment combination.
Refrigerant piping, evacuation, leak testing, electrical connections and refrigerant charging should be completed by qualified HVAC personnel according to applicable regulations and equipment manufacturer instructions.
OEM Split AC Installation Kit Manufacturer
DABUND has manufactured insulated copper tubing, mini split line sets and HVAC installation accessories since 2008. The company supplies installation-kit solutions for overseas HVAC distributors, wholesalers, contractors, importers and private-label brands.
OEM and ODM options include:
Customized copper tube combinations
Customized line set lengths
White PE or black rubber insulation
Customized insulation thickness
Company name and specification printing
Customized communication cable
Customized drain hose and wall accessories
Private-label cartons and retail packaging
Bulk supply for distributors and HVAC brands
Why Choose DABUND for Split AC Installation Kits?
DABUND specializes in insulated copper piping, mini split refrigerant line sets and HVAC installation accessories. Integrated production allows B2B customers to source refrigerant tubing, insulation and installation components through one supplier.
HVAC product manufacturing experience since 2008
C12200 copper tubing for air-conditioning and refrigeration applications
ASTM B280 copper tube specifications available
White PE and black rubber insulation options
Multiple insulation thicknesses
Complete mini split installation kit configurations
OEM and ODM customization
Sample support for product evaluation
Bulk production for distributors and wholesalers
DABUND Factory
DABUND produces insulated copper pipes, mini split line sets, aluminum pipes and HVAC installation accessories for international B2B markets.
SGS Testing and Product Standards
DABUND insulation options are available with testing related to ASTM E84, UL 94, ASTM D1056 and ASTM G21. Buyers should confirm the exact material specification and test documentation required for their destination market.
International HVAC Exhibitions
DABUND participates in international exhibitions to present insulated copper line sets, split AC installation kits and HVAC accessories to distributors, importers, contractors and industry buyers.
Frequently Asked Questions
What is included in the 30 ft 3/8" x 5/8" Split AC Installation Kit?
The standard kit includes a 30 ft insulated 3/8" + 5/8" copper refrigerant line set, communication cable, drain hose, wall sleeve, wall cover and related AC installation accessories. Exact kit contents can be customized.
What does 3/8" x 5/8" mean on an AC line set?
The dimensions refer to the outside diameters of the two copper refrigerant tubes. They are approximately 9.52 mm and 15.88 mm. Their specific liquid-line and suction-line functions must match the connected HVAC equipment.
Is a 3/8" x 5/8" line set suitable for every mini split AC?
No. Refrigerant pipe dimensions vary by manufacturer, model and system design. Always check the equipment installation manual and verify that 3/8" x 5/8" tubing is specified before purchasing.
How long is this refrigerant line set?
This kit includes approximately 30 ft, or 9.14 m, of paired insulated copper refrigerant tubing.
Are the copper tube ends pre-flared?
Yes. The copper pipe ends can be supplied pre-flared with flare nuts to simplify connection to compatible mini split indoor and outdoor units.
What copper material is used?
DABUND uses C12200 DHP copper tubing for HVAC and refrigeration applications. ASTM B280 specifications are available according to the ordered product configuration.
What insulation options are available?
White PE and black rubber insulation options are available. Multiple insulation thicknesses can be selected according to project requirements, climate conditions and target-market specifications.
Can DABUND customize the Split AC Installation Kit?
Yes. DABUND provides OEM and ODM services for tube dimensions, kit length, insulation material, insulation thickness, communication cable, drain hose, wall accessories, product printing and packaging.
Can my company logo be printed on the product?
Yes. Logo printing, specification markings and private-label packaging can be provided for OEM and bulk orders.
Can I get samples before placing a bulk order?
Yes. DABUND provides sample support for product evaluation. You can visit the free sample page for additional 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 order and commercial agreement.
What delivery terms are available?
Available international trade terms can include EXW, FOB, CFR and CIF. Buyers can confirm their preferred Incoterm when requesting a quotation.
What is the typical production lead time?
Standard production lead time is typically around 15–20 days according to the current product information. Actual lead time depends on order quantity, customization, material availability and the production schedule.
