-
DBJ-003
-
DABUND
-
Copper
-
1M - 10M
Material
Color
Keywords
Application
25 ft 3/8" x 3/4" Split System Air Conditioner Installation Kit
The 25 ft 3/8" x 3/4" Split System Air Conditioner Installation Kit is designed for split AC systems, ductless mini split air conditioners, heat pumps and HVAC installation projects that require insulated copper pipes and complete installation accessories.
This HVAC installation kit includes 3/8" and 3/4" insulated copper pipes, white PE or black rubber insulation options, drain hose, communication wire cable, wall pipe with cover and other necessary parts for professional air conditioner installation.
Dabund Pipe has produced HVAC parts, insulated copper pipes, mini split line sets and air conditioner installation kits since 2008, supporting HVAC contractors, wholesalers, distributors and private-label brands.
What is a Split System Air Conditioner Installation Kit?
A split system air conditioner installation kit is a complete set of components used to connect the indoor and outdoor units of a split AC or mini split HVAC system. It usually includes insulated copper line sets, drain hose, communication cable, wall sleeve, wall cover and flare connection accessories.
Compared with buying separate parts, a complete split AC installation kit helps improve compatibility, reduce missing parts, shorten installation time and create a cleaner finished HVAC installation.
Key Features of 25 ft 3/8" x 3/4" Split AC Installation Kit
25 ft split system air conditioner installation kit for HVAC and mini split applications.
Includes one set of 3/8" + 3/4" insulated copper pipes.
Includes communication wire cable, 3 m drain hose, wall pipe and wall cover.
Both copper pipe ends can be flared and supplied with nuts.
White PE and black rubber insulation options are available.
White PE insulation thickness options include 3/8", 1/2", 3/4", 1", 8 mm, 9 mm, 10 mm, 13 mm, 19 mm and 25.4 mm.
Black rubber insulation thickness options include 1/2", 3/4", 1", 13 mm, 17 mm, 19 mm and 25.4 mm.
Copper pipe meets ASTM B280 and C12200 standards.
Insulation test options include ASTM E84, UL94, ASTM D1056 and ASTM G21.
Suitable for HVACR wholesalers, contractors, distributors and installation kit suppliers.
What’s Included in This 25 ft Installation Kit?
| Component | Description |
| 3/8" Copper Pipe | Refrigerant line for compatible split AC and mini split systems. |
| 3/4" Copper Pipe | Larger refrigerant line used for compatible higher-capacity split AC systems. |
| Pipe Insulation | White PE or black rubber insulation for thermal protection and condensation control. |
| Communication Wire Cable | Used for indoor and outdoor unit communication connection. |
| Drain Hose | 3 m condensate drain hose for indoor unit water drainage. |
| Wall Pipe and Cover | Protects wall penetration and improves installation appearance. |
| Flaring and Nuts | Pipe ends can be flared and supplied with nuts for faster field connection. |
Copper Tube and Insulation Standards
The copper tube is designed for HVAC refrigerant line applications and meets ASTM B280 and C12200 DHP copper standards. This supports reliable refrigerant flow, corrosion resistance and long-term HVAC performance.
The insulation uses high-density closed-cell polyethylene foam or black rubber material. It helps reduce heat transfer, control moisture condensation and protect the copper pipe during indoor and outdoor installation.
Copper tube: ASTM B280 and C12200 DHP.
Insulation: high-density closed-cell polyethylene foam or black rubber.
Working temperature performance: designed for HVAC installation environments.
Surface burning characteristics: UL94 and UL723 options available.
Smoke and fire performance: ASTM E84 25/50 options available.
Additional performance: tear resistance, UV resistance and moisture resistance.
99.9% Pure Copper
Black Rubber Insulated Pipe
Flared Pipe Ends
Features of Black Rubber Pipe Insulation
Black rubber pipe insulation is designed for HVAC copper line protection. It supports thermal insulation, moisture resistance and condensation control for split system air conditioner installations.
Black rubber insulation temperature range from -40℃ to 120℃.
Closed-cell structure helps reduce moisture condensation.
Insulation layer also works as a moisture-proof protective layer.
No additional water vapor permeation protective layer is required in many standard installations.
Helps improve heat preservation and protect copper pipes in outdoor or humid environments.
Flame-retardant options are available for project requirements.
Benefits of 25 ft 3/8" x 3/4" Split AC Installation Kit
Excellent Heat Preservation Insulation
The high-density closed-cell insulation structure has low thermal conductivity and stable temperature performance, helping protect refrigerant lines from outside weather changes.
Moisture Condensation Control
The insulation material functions as both a thermal insulation layer and a moisture-proof layer, helping reduce pipe sweating and moisture-related damage around the line set.
Corrosion-Resistant and Durable Material
The insulation material is designed to resist corrosion, acid and alkali exposure, helping improve service life in HVAC installation environments.
Faster Installation for HVAC Contractors
A complete installation kit with insulated copper pipes, wire cable, drain hose and wall cover helps reduce jobsite preparation time and lowers the risk of missing accessories.
Product Specifications
| Item | Specification |
| Product Name | 25 ft 3/8" x 3/4" Split System Air Conditioner Installation Kit |
| Line Size | 3/8" + 3/4" |
| Length | 25 ft |
| Copper Tube Standard | ASTM B280 and C12200 DHP |
| Insulation Options | White PE or black rubber |
| Included Accessories | Drain hose, wire cable, wall pipe, wall cover and necessary parts |
| Application | Split AC, mini split, heat pump and HVACR installation |
| Customization | OEM, ODM, logo printing and custom packaging |
25 ft 3/8" x 3/4" Split System AC Installation Kit for HVACR Wholesalers
Dabund Pipe supplies in-house tested split system air conditioner installation kits for HVACR applications. The kit is designed to make installation simple and quick, helping contractors save time and reduce cost on each job.
The product is suitable for HVAC wholesalers, contractors, distributors, installation companies and private-label brands that need consistent line set kit supply.
Split System Air Conditioner Installation Kit Size Options
| Size | Length | Insulation Black Rubber | Flame Resistant |
| 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 | 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 |
Recommended Applications by AC Capacity
| Line Set Size | Common AC Capacity | Typical BTU Range | Typical Application |
| 1/4 + 3/8 | 0.75 ton - 1.0 ton | 9,000 BTU - 12,000 BTU | Small split AC and mini split system |
| 1/4 + 1/2 | 1.5 ton - 2.0 ton | 12,000 BTU - 18,000 BTU | Residential mini split air conditioner |
| 1/4 + 5/8 | 2.0 ton - 2.5 ton | 24,000 BTU - 30,000 BTU | Split air conditioner system |
| 3/8 + 5/8 | 3.0 ton - 4.0 ton | 36,000 BTU - 48,000 BTU | Ductless mini split and heat pump |
| 3/8 + 3/4 | 4.5 ton - 6.0 ton | 54,000 BTU - 72,000 BTU | Larger split system air conditioner installation |
| 3/8 + 7/8 | 6.0 ton - 8.0 ton | 72,000 BTU - 96,000 BTU | Commercial ductless HVAC systems |
The 3/8" x 3/4" line set size is commonly used for 4.5 ton to 6.0 ton split AC systems and 54,000 BTU to 72,000 BTU applications. Final selection should always follow the air conditioner manufacturer’s installation manual.
Why Choose Dabund 25 ft 3/8" x 3/4" Split AC Installation Kit?
Manufacturing Experience Since 2008
Dabund has produced HVAC installation kits, mini split line sets, insulated copper pipes and HVAC parts since 2008, with long-term experience in production and export supply.
Individual Pre-Insulated Rolls
Individual pre-insulated rolls are designed to fit ductless mini split, VRF, heat pump and unitary system installations, helping contractors choose suitable products for different HVAC projects.
Competitive B2B Supply
Dabund supports wholesalers, distributors and private-label brands with quality products, competitive pricing, OEM customization and professional service.
Dabund Factory
Dabund produces insulated copper pipe, mini split line set, aluminum pipe and HVAC parts for global customers.
SGS Certificate
Mini split line set insulation can be made with polypropylene or black rubber with UV resistance, meeting ASTM E84, UL94, ASTM D1056 and ASTM G21 requirements.
Exhibition
Dabund joins HVAC exhibitions worldwide to present mini split line set and installation kit products to customers face to face.
FAQ
What is included in the 25 ft 3/8" x 3/4" Split System AC Installation Kit?
The kit can include 3/8" and 3/4" insulated copper pipes, communication wire cable, 3 m drain hose, wall pipe, wall cover, flared pipe ends, nuts and other necessary installation parts.
What AC capacity is 3/8" x 3/4" commonly used for?
The 3/8" x 3/4" line set is commonly used for 4.5 ton to 6.0 ton split air conditioner systems, or 54,000 BTU to 72,000 BTU applications. Always confirm with the equipment manual.
Are the copper pipe ends pre-flared?
Yes. Both copper pipe ends can be flared and supplied with nuts, helping reduce installation time and field preparation work.
What insulation materials are available?
Dabund can offer white PE insulation and black rubber insulation. White PE and black rubber insulation are available in multiple thicknesses for different HVAC installation requirements.
What standards does the copper pipe meet?
The copper pipe meets ASTM B280 and C12200 standards. Insulation options can meet ASTM E84, UL94, ASTM D1056 and ASTM G21 requirements.
Is this kit suitable for outdoor installation?
Yes. The insulated copper pipes can be used for indoor and outdoor HVAC line runs when installed according to equipment requirements and local HVAC installation standards.
Can this split AC installation kit be customized?
Yes. Dabund supports custom lengths, insulation thicknesses, insulation materials, OEM logo printing and custom packaging for distributors and private-label customers.
Are you a trading company or manufacturer?
Dabund is a manufacturer of split system air conditioner installation kits, mini split line sets, insulated copper pipes and HVAC parts.
Can I get a free sample?
Yes. Dabund can provide qualified customers with 3 pieces of free samples. Express cost may need to be covered by the buyer. You can request samples through the free sample page.
Can I print my logo?
Yes. Dabund accepts OEM and ODM orders, including logo printing, brand marking and customized packaging.
What payment terms are available?
Payment terms may include T/T, L/C at sight, credit card and other agreed payment methods depending on order details.
What delivery terms can you offer?
Dabund can offer common international trade terms such as EXW, FOB, CFR and CIF.
How long is your delivery time?
Normal delivery time is usually 15 to 20 days. For urgent orders, production and shipment can be arranged in advance according to factory schedule.
