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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 1/4" x 5/8" HVAC Installation Kit
The 50 ft 1/4" x 5/8" HVAC installation kit from DABUND is a complete mini split installation solution for compatible ductless air conditioners, heat pumps, VRF systems, and HVACR applications. The kit includes a pre-insulated copper line set with a 1/4-inch liquid line and a 5/8-inch suction line, plus installation accessories such as communication cable, drain hose, wall sleeve, wall cover, and other required components.
DABUND PIPE has produced HVAC parts, insulated copper pipe, mini split line sets, and air conditioner installation kits since 2008. This product is designed for HVAC contractors, distributors, wholesalers, importers, equipment brands, and OEM buyers that need stable quality, flexible configuration, and export-ready supply.
Compatibility notice: Before ordering, confirm that your indoor and outdoor units require a 1/4" liquid line and 5/8" suction line. Pipe diameter, copper wall thickness, insulation thickness, flare connection, refrigerant type, maximum line length, and additional refrigerant charge must follow the equipment manufacturer’s installation manual.
Product Specifications
| Product Name | 50 Ft 1/4" x 5/8" HVAC Installation Kit |
| Product Type | Mini split installation kit / HVAC copper line set kit |
| Liquid Line Size | 1/4 inch copper tube |
| Suction Line Size | 5/8 inch copper tube |
| Length | 50 ft / approximately 15 m |
| Copper Material | C12200 DHP copper tube, 99.9% pure copper option available |
| Copper Standard | ASTM B280 option available for air-conditioning and refrigeration field service |
| Tube Ends | Pre-flared copper tube ends with flare nuts |
| Insulation Material | White PE insulation or black rubber insulation |
| White PE Insulation Thickness | 3/8", 1/2", 3/4", 1" or 8 mm, 9 mm, 10 mm, 13 mm, 19 mm, 25.4 mm |
| Black Rubber Insulation Thickness | 1/2", 3/4", 1" or 13 mm, 17 mm, 19 mm, 25.4 mm |
| Working Temperature | -40°C to 120°C for black rubber insulation configuration |
| Available Test Reports | ASTM E84, UL 94, ASTM D1056, ASTM G21, and related insulation test documentation |
| Application | Mini split air conditioners, ductless heat pumps, split HVAC systems, VRF systems, and HVACR installation projects |
| Customization | Length, insulation thickness, insulation material, communication cable, drain hose, wall sleeve, packaging, logo, and OEM branding |
What Is Included in the 50 Ft HVAC Installation Kit?
This 50 ft HVAC installation kit is supplied as a convenient accessory package for compatible air conditioner and heat-pump installations. Standard contents can be adjusted according to different market, brand, and project requirements.
50 ft 1/4" insulated copper liquid line
50 ft 5/8" insulated copper suction line
Factory-flared copper pipe ends
Flare nuts for line-set connection
Communication wire cable
Drain hose, commonly supplied in 3 m length
Wall pipe, wall cover, wrapping tape, and other necessary installation accessories
Key Features of 1/4" x 5/8" Mini Split Installation Kit
Pre-Insulated Copper Line Set
The kit includes a paired copper refrigerant line set with insulation applied to both tubes. The insulation helps reduce heat transfer, limit surface condensation, and protect the copper tubing during storage, transportation, installation, and operation.
Factory-Flared Ends with Nuts
Both copper pipe ends can be supplied with pre-flaring and flare nuts. This helps installers save preparation time and improves installation consistency. Final tightening, leak testing, evacuation, and charging must still follow the air conditioner manufacturer’s technical requirements.
ASTM B280 and C12200 Copper Options
The copper tube is available with C12200 DHP copper and ASTM B280 configuration for HVAC and refrigeration field service. This gives distributors and contractors a clear technical basis when sourcing copper line sets for air-conditioning systems.
White PE and Black Rubber Insulation Options
DABUND supplies both white PE insulation and black rubber insulation. White PE insulation is commonly selected for standard air conditioner installation kits, while black rubber insulation is often selected for higher flexibility, condensation control, and project-specific performance requirements.
Wholesale and OEM Supply
DABUND supports HVAC wholesalers, importers, distributors, and private-label brands with customized packaging, logo printing, carton design, accessory combinations, insulation thickness, cable specification, and bulk order supply.
99.9% Pure Copper
Black Rubber Insulated Pipe
Pre-Flared Ends
Black Rubber Pipe Insulation Benefits
Black rubber insulation is designed for HVAC refrigerant piping that requires thermal protection, condensation resistance, flexibility, and durable outdoor performance.
Heat preservation: The high-density closed-cell structure helps reduce thermal conductivity and maintain stable refrigerant-line performance.
Moisture condensation control: The insulation layer also works as a moisture barrier when installed and sealed correctly.
UV resistance: UV-resistant options are available for outdoor and exposed installation environments.
Flame-retardant options: Selected insulation configurations can support flame-retardant requirements such as M1 or B1.
Cleaner installation appearance: Insulation helps protect the copper pipe and keeps the air-conditioning line route neat.
50 Ft 1/4" x 5/8" HVAC Kit for HVACR Applications
The 50 ft 1/4" x 5/8" HVAC installation kit is suitable for compatible HVACR systems that require this exact line-set size. It is commonly used in ductless mini split installations, split air conditioner projects, heat pump systems, replacement projects, and light-commercial HVAC installations.
A 50 ft line set is often selected when the indoor and outdoor units are installed farther apart. Installers should verify whether the equipment allows a 50 ft refrigerant run and whether additional refrigerant charge is required.
Available HVAC Installation Kit Sizes
DABUND supplies multiple HVAC installation kit sizes for different mini split and air-conditioning systems. Standard sizes, lengths, insulation thicknesses, and accessory packages can be customized for wholesale and OEM orders.
| Size | Length | Insulation Black Rubber | Flame Resistant |
| 1/4" + 3/8" | 3 m / 4 m / 5 m / 7 m / 10 m / customized | 8 mm / 9 mm / 10 mm / 13 mm / 19 mm / 25.4 mm | M1 / B1 |
| 1/4" + 1/2" | 3 m / 4 m / 5 m / 7 m / 10 m / customized | 8 mm / 9 mm / 10 mm / 13 mm / 19 mm / 25.4 mm | M1 / B1 |
| 1/4" + 5/8" | 3 m / 4 m / 5 m / 7 m / 10 m / 15 m / customized | 8 mm / 9 mm / 10 mm / 13 mm / 19 mm / 25.4 mm | M1 / B1 |
| 3/8" + 5/8" | 3 m / 4 m / 5 m / 7 m / 10 m / customized | 8 mm / 9 mm / 10 mm / 13 mm / 19 mm / 25.4 mm | M1 / B1 |
| 3/8" + 3/4" | 3 m / 4 m / 5 m / 7 m / 10 m / customized | 8 mm / 9 mm / 10 mm / 13 mm / 19 mm / 25.4 mm | M1 / B1 |
| 1/2" + 3/4" | 3 m / 4 m / 5 m / 7 m / 10 m / customized | 8 mm / 9 mm / 10 mm / 13 mm / 19 mm / 25.4 mm | M1 / B1 |
| 3/8" + 7/8" | 3 m / 4 m / 5 m / 7 m / 10 m / customized | 8 mm / 9 mm / 10 mm / 13 mm / 19 mm / 25.4 mm | M1 / B1 |
How to Choose the Correct Mini Split Line Set Size
Line-set size should be selected according to the equipment manufacturer’s installation manual, not only by BTU or tonnage. The same nominal cooling capacity may use different refrigerant pipe sizes depending on the brand, refrigerant type, indoor unit, outdoor unit, and installation design.
| Line Set Size | Common Reference Application | Important Notice |
| 1/4" + 3/8" | Commonly referenced for smaller mini split systems | Check the equipment manual before ordering |
| 1/4" + 1/2" | Commonly referenced for small to medium mini split systems | Confirm actual connection size and permitted line length |
| 1/4" + 5/8" | Used only for systems requiring this exact liquid and suction line combination | Do not select by BTU alone |
| 3/8" + 5/8" | Commonly referenced for larger split air conditioner systems | Confirm refrigerant type and pipe requirements |
| 3/8" + 3/4" | Commonly referenced for higher-capacity HVAC systems | Confirm pressure rating, insulation thickness, and system design |
| 3/8" + 7/8" | Commonly referenced for large HVACR applications | Confirm compatibility before procurement |
Why Choose DABUND PIPE as Your HVAC Installation Kit Manufacturer?
DABUND PIPE is a manufacturer of HVAC installation kits, insulated copper pipe, mini split line sets, aluminum pipe, and HVAC parts. With production experience since 2008, DABUND supports global buyers with stable manufacturing, export coordination, and customized supply.
Manufacturing experience: HVAC parts and installation kit production since 2008.
Factory supply: Two-factory production system for insulated copper line sets and HVAC accessories.
High capacity: Production capability for bulk orders and distributor supply programs.
Fast sampling: Sample support available for qualified buyers and customized projects.
Export service: Long-term freight-forwarding cooperation and international shipment experience.
OEM and ODM: Custom logo, packaging, insulation, length, and accessory configuration.
DABUND Factory
DABUND produces insulated copper pipe, mini split line sets, aluminum pipe, and HVAC parts for distributors, wholesalers, contractors, and OEM brands.
SGS Certificate and Test Reports
DABUND can provide selected test reports for insulation materials, including UV resistance, flame performance, material property, and mold-resistance documentation. Buyers should confirm the exact material, report version, and market requirement before ordering.
International HVAC Exhibitions
DABUND joins international HVAC exhibitions to help customers inspect mini split line sets, insulated copper pipe, and HVAC installation kits directly.
FAQ About 50 Ft 1/4" x 5/8" HVAC Installation Kit
What does 50 ft 1/4" x 5/8" HVAC installation kit mean?
It means the kit includes a 50 ft refrigerant line set with one 1/4-inch copper liquid line and one 5/8-inch copper suction line. It is supplied with insulation and installation accessories for compatible HVAC systems.
Is this 1/4" x 5/8" line set suitable for every mini split?
No. It is suitable only for equipment that specifies a 1/4" liquid line and 5/8" suction line. Always confirm the required line-set size, permitted length, refrigerant type, and connection method in the installation manual.
Can I use the full 50 ft length without adding refrigerant?
Not always. Many mini split systems are factory charged for a specific line length. If the installed length exceeds the factory-charged allowance, additional refrigerant may be required according to the equipment manufacturer’s formula.
What insulation options are available?
DABUND can supply white PE insulation and black rubber insulation. Thickness options can include 3/8", 1/2", 3/4", 1", or metric thicknesses such as 8 mm, 9 mm, 10 mm, 13 mm, 17 mm, 19 mm, and 25.4 mm depending on the selected insulation material.
Does the copper pipe meet ASTM B280?
ASTM B280 copper tube configuration is available for HVAC and refrigeration field service. Buyers should confirm copper material, wall thickness, test documentation, and compliance requirements before placing bulk orders.
Can DABUND customize the HVAC installation kit?
Yes. DABUND supports customized line length, insulation thickness, insulation color, communication cable, drain hose, wall sleeve, accessory combination, logo printing, carton design, and OEM packaging.
Are you a trading company or manufacturer?
DABUND is a manufacturer of HVAC installation kits, mini split line sets, insulated copper pipe, aluminum pipe, and related HVAC parts.
Can I get samples before bulk order?
Yes. Sample support is available. Buyers can request product samples to check copper quality, insulation material, flare quality, accessory configuration, and packaging before confirming bulk orders.
What payment terms do you accept?
Common payment terms include T/T, L/C at sight, credit card, and other agreed payment methods depending on order value and cooperation terms.
What delivery terms are available?
DABUND can support common export delivery terms such as EXW, FOB, CFR, and CIF. Final delivery terms depend on destination, order volume, freight method, and buyer requirements.
How long is the delivery time?
Standard delivery time is usually around 15 to 20 days, depending on order quantity, packaging requirements, production schedule, and customization details. Urgent orders can be discussed in advance.
