30 Ft 1/4" x 5/8" AC Installation Kit
DABUND 30 ft 1/4" x 5/8" AC Installation Kit combines pre-insulated copper refrigerant tubing with commonly required accessories for compatible mini split air conditioners and heat pump installations.
The kit includes a 30 ft / approximately 9.14 m pair of 1/4" and 5/8" copper tubing, control or communication cable, a 3 m drain hose, wall pipe and wall cover. Both ends of the copper tubing are flared and supplied with nuts.
The copper tube outside diameters are approximately 6.35 mm and 15.88 mm. On compatible HVAC equipment, the smaller 1/4" tube commonly functions as the liquid refrigerant line while the 5/8" tube commonly functions as the suction or gas return line.
The current product description specifies 1/2" White PE insulation. DABUND also offers Black Rubber insulation and multiple insulation thickness options according to the ordered configuration.
Quick Answer: This is a 30 ft / approximately 9.14 m AC installation kit with 1/4" and 5/8" pre-insulated copper tubing, flared ends with nuts, control cable, drain hose, wall pipe and wall cover for compatible split AC installations.
Compatibility Notice: Confirm the required liquid-line size, suction-line size, permitted refrigerant piping length, flare connection dimensions, cable requirements and drain arrangement for the exact indoor and outdoor HVAC equipment before ordering.
What Is Included in the 30 Ft AC Installation Kit?
| Insulated Copper Tubing | 1/4" + 5/8", 30 ft / approx. 9.14 m |
| Copper Tube Ends | Flared ends with nuts |
| Control / Communication Cable | Included according to kit configuration |
| Drain Hose | 3 m |
| Wall Pipe | Included |
| Wall Cover | Included |
| Displayed Insulation | Current product description: 1/2" White PE |
| Alternative Insulation | Black Rubber options available |
30 Ft 1/4" x 5/8" AC Installation Kit Specifications
| Brand | DABUND |
| Product Type | AC / Mini Split Installation Kit |
| Copper Tube Size | 1/4" + 5/8" |
| Metric Outside Diameter | Approx. 6.35 mm + 15.88 mm |
| Common Line Function | 1/4" liquid line + 5/8" suction/gas line on compatible equipment |
| Length | 30 ft / approx. 9.14 m |
| Copper Material | High-purity copper / C12200 DHP according to specification |
| Copper Tube Standard | ASTM B280 specification available |
| Primary Insulation | 1/2" White PE according to current product description |
| White PE Thickness Options | 8 mm / 9 mm / 10 mm / 13 mm / 19 mm / 25.4 mm according to configuration |
| Black Rubber Thickness Options | 13 mm / 17 mm / 19 mm / 25.4 mm according to configuration |
| Drain Hose | 3 m |
| Applications | Compatible mini split AC and heat pump installations |
| OEM / ODM | Available according to ordered configuration |
Key Features of the 30 Ft 1/4" x 5/8" Installation Kit
1/4" and 5/8" Refrigerant Copper Tubing
The kit contains paired 1/4" and 5/8" copper refrigerant tubing. On compatible systems, the smaller 1/4" tube commonly serves as the liquid line while the larger 5/8" tube serves as the suction or gas return line.
The approximate outside diameters are 6.35 mm and 15.88 mm. Always verify the required refrigerant pipe dimensions for the exact HVAC equipment model.
30 Ft / 9.14 m Installation Length
The 30 ft copper tubing length provides approximately 9.14 m of refrigerant piping for compatible installations requiring more routing distance between the indoor and outdoor units.
Pre-Flared Ends With Nuts
Both copper tube ends are supplied with flared connections and nuts, reducing field preparation where the supplied flare dimensions match the HVAC equipment connections.
Control Cable Included
Control or communication cable is included according to the selected kit configuration. Electrical requirements vary by equipment, so conductor count and wire specification should be confirmed before installation.
Drain Hose, Wall Pipe and Wall Cover
The kit includes a 3 m drain hose together with a wall pipe and wall cover for routing refrigerant tubing, wiring and condensate drainage through the building wall.
White PE Insulation Configuration
The current product description specifies 1/2" White PE insulation. White PE thickness options include 8 mm, 9 mm, 10 mm, 13 mm, 19 mm and 25.4 mm according to the selected configuration.
Black Rubber Insulation Also Available
DABUND also supplies Black Rubber insulation options for AC installation kits. The insulation material and thickness should be confirmed when placing the order.

High-Purity Copper

Optional Black Rubber Insulation

Flared Ends With Nuts
Insulation Options for the AC Installation Kit
DABUND offers both White PE and Black Rubber insulation configurations for selected installation kits. The current 30 ft 1/4" x 5/8" product description specifies 1/2" White PE insulation.
Black Rubber insulation is also available as an alternative configuration. The product image below shows the Black Rubber insulation option.

Thermal Protection
Insulation helps reduce heat transfer between refrigerant copper tubing and surrounding air during HVAC operation.
Condensation Control
Properly installed closed-cell insulation helps limit moisture penetration and reduce surface condensation around refrigerant tubing.
Available Insulation Testing
Current product information references insulation testing related to ASTM E84, UL 94, ASTM D1056 and ASTM G21. Applicable documentation depends on the selected insulation material and ordered configuration and should be confirmed before purchase.
Why Choose a 30 Ft 1/4" x 5/8" AC Installation Kit?
A complete installation kit combines refrigerant copper tubing with commonly required installation accessories in one package for HVAC distributors, installers and project suppliers.
Compared with purchasing only a copper line set, this kit also includes control cable, drain hose, wall pipe and wall cover according to the selected configuration.
The 30 ft / approximately 9.14 m length provides additional routing distance for compatible systems requiring more separation between indoor and outdoor equipment than shorter installation kits.

30 Ft AC Installation Considerations
Verify the Required 1/4" x 5/8" Refrigerant Pipe Sizes
Confirm that the exact indoor and outdoor HVAC equipment requires approximately 6.35 mm and 15.88 mm outside-diameter refrigerant tubing. Do not select the kit only from system capacity.
Confirm the 30 Ft Piping Length
Verify that approximately 30 ft / 9.14 m is appropriate for the planned piping route and falls within the minimum and maximum refrigerant piping limits specified by the HVAC equipment manufacturer.
Check the Pre-Flared Connections
The copper tubing is supplied with flared ends and nuts. Inspect flare surfaces and confirm flare and nut dimensions before connection.
Verify Control Cable Requirements
Control and communication wiring requirements vary between HVAC systems. Confirm conductor count, wire size and electrical requirements against the exact equipment wiring diagram.
Plan the Condensate Drain Route
The kit includes a 3 m drain hose. Confirm that the supplied hose length and drainage route are suitable for the installation location.
Check Refrigerant Charging Instructions
Some HVAC systems include a factory refrigerant charge for only a specified piping length. Follow the equipment manufacturer's instructions to determine whether refrigerant adjustment is required for a 30 ft installation.
Is 1/4" x 5/8" Compatible With My Mini Split?
The 1/4" x 5/8" refrigerant piping combination is used by selected split air conditioners, ductless mini split systems and heat pumps.
Some systems in approximately 24,000–30,000 BTU classes may use this pipe combination, but this is not a universal sizing rule.
Equipment with similar nominal capacity can require different liquid-line and suction-line dimensions. Always verify the exact HVAC manufacturer's piping specification before ordering.
Available AC Installation Kit Sizes
| Size | Length Options | Insulation Options | 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 | Current SKU: 30 ft / approx. 9.14 m; broader options include 3m / 4m / 5m / 7m / 10m | White PE current description; Black Rubber also available | M1 / B1 options |
| 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 |
AC Installation Kits for HVAC Distributors
DABUND supplies AC installation kits to HVAC distributors, wholesalers, importers, contractors, project suppliers and private-label brands.
The 30 ft 1/4" x 5/8" configuration combines insulated refrigerant copper tubing and installation accessories into one package for compatible mini split and heat pump applications.
OEM and Custom AC Installation Kits
DABUND supports OEM and ODM supply according to the required installation-kit configuration.
Custom copper tube combinations
Custom installation-kit lengths
White PE or Black Rubber insulation options
Multiple insulation thicknesses
Control or communication cable configuration
Drain hose and wall-accessory configuration
Printed product identification
Private-label packaging
Why Choose DABUND AC Installation Kits?
HVAC Manufacturing Experience Since 2008
DABUND has manufactured HVAC components since 2008, supplying AC installation kits, insulated copper tubing, mini split line sets and related HVAC products to international customers.
Complete Installation Kit Configuration
Copper tubing, control cable, drain hose, wall pipe and wall cover can be supplied as one installation-kit package for HVAC distributors and installers.
Multiple Sizes and Insulation Options
Multiple copper tube combinations, kit lengths and insulation options are available for different HVAC equipment and market requirements.
DABUND Factory and Export Packaging
DABUND manufactures insulated copper pipe, mini split line sets, AC installation kits and related HVAC components for international B2B customers.

SGS Testing and Insulation Standards
Current product information references insulation testing related to ASTM E84, UL 94, ASTM D1056 and ASTM G21, while copper tubing is available to ASTM B280 and C12200 specifications. Buyers should confirm applicable documentation for the exact ordered configuration.

International HVAC Exhibitions
DABUND participates in international HVAC exhibitions to present AC installation kits, insulated copper tubing and related HVAC products to distributors, importers and professional buyers.

Frequently Asked Questions
What is included in the 30 ft 1/4" x 5/8" AC installation kit?
The current product information lists a 30 ft 1/4" x 5/8" insulated copper line set, control or communication cable, 3 m drain hose, wall pipe and wall cover, together with other accessories according to the selected kit configuration.
How long is the copper refrigerant line?
The copper line set is 30 ft long, equivalent to approximately 9.14 m.
What are the metric sizes of 1/4" and 5/8" copper tubing?
A 1/4" copper tube has an outside diameter of approximately 6.35 mm, while a 5/8" copper tube has an outside diameter of approximately 15.88 mm.
Are the copper tubing ends already flared?
Yes. The current product information states that both copper tube ends are flared and supplied with nuts.
Which tube is normally the liquid line and which is the suction line?
On compatible systems, the 1/4" tube commonly functions as the liquid line while the 5/8" tube commonly functions as the suction or gas line. Always verify the equipment manufacturer's piping specification.
What AC capacity uses a 1/4" x 5/8" line set?
Some systems in approximately 24,000–30,000 BTU classes may use this pipe combination, but this is not universal. Similar-capacity equipment can require different refrigerant pipe dimensions.
Can I select the AC installation kit by BTU capacity alone?
No. Confirm the exact refrigerant tube dimensions, flare connection size, allowable piping length, wiring requirements and drainage arrangement specified by the HVAC manufacturer.
Is a 30 ft line set suitable for every mini split system?
No. Verify that approximately 30 ft / 9.14 m falls within the minimum and maximum refrigerant piping limits permitted by the exact equipment model.
Does a 30 ft refrigerant line require additional refrigerant?
It depends on the HVAC equipment. Some systems include a factory refrigerant charge for only a specified piping length. Follow the manufacturer's charging instructions for the exact model.
What insulation is used on this 30 ft installation kit?
The current product description specifies 1/2" White PE insulation. The source product information also lists Black Rubber as an available insulation option.
What White PE insulation thicknesses are available?
Available White PE thickness options listed in the current product information include 8 mm, 9 mm, 10 mm, 13 mm, 19 mm and 25.4 mm according to configuration.
Is Black Rubber insulation available?
Yes. Black Rubber insulation options are also listed for selected installation-kit configurations. Confirm insulation material and thickness when ordering.
How long is the included drain hose?
The current product information lists a 3 m drain hose.
Can DABUND customize the AC installation kit?
Yes. OEM and ODM configurations can include different copper tube combinations, kit lengths, insulation options, printed identification and installation accessories according to buyer requirements.
Can I get samples before placing a bulk order?
Yes. According to the current product information, DABUND can provide three sample pieces for evaluation, 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?
International trade terms can include EXW, FOB, CFR and CIF according to the buyer's logistics requirements.
What is the typical delivery time?
Current product information lists typical delivery at approximately 15–20 days. Actual lead time depends on order quantity, product specification, customization and production schedule.
Who should install the AC installation kit?
Refrigerant piping connections, electrical wiring, pressure testing, evacuation, refrigerant charging and condensate drainage should be completed by qualified HVAC personnel according to local requirements and the equipment manufacturer's instructions.