Premium 35 ft split system installation kit with pre-insulated 1/4″ × 1/2″ copper refrigerant line set and essential HVAC accessories — designed for efficient and professional installation of residential and light commercial air conditioners.
The Split AC Installation Kit is twin already. So buy it now.
Product Overview – All-In-One HVAC Line Set & Installation Kit
The 35 ft 1/4″ × 1/2″ split system air conditioner installation kit provides everything needed to install a ductless or split AC system with confidence. Featuring a pre-insulated copper line set and key mounting and connection accessories, this kit reduces installation time and improves system performance.
Pre-Insulated Copper Line Set for Thermal Efficiency
Includes a 35 ft pre-insulated copper line set with 1/4″ liquid and 1/2″ suction tubes
Factory-applied insulation limits heat gain/loss and prevents condensation
Eliminates need for on-site tape/wrap insulation — faster install
Complete Installation Accessories Included
Communication wiring cable for indoor–outdoor unit signal linkage
Condensate drain hose for effective moisture evacuation
Wall pipe & protective cover for clean and secure line entry
Flare nuts and basic fittings for solid, leak-resistant connections
Key Features & Benefits
Streamlines HVAC Installation & Saves Labor
This installation kit provides all required components in one package, avoiding the need to source individual parts and lowering overall labor time for installers.
Improves Energy Efficiency & System Performance
Pre-insulated tubing maintains steady refrigerant temperature profiles and reduces energy loss, enhancing the cooling and heating efficiency of your split AC system.
Reduces Condensation & Moisture Issues
Insulated lines minimize surface condensation and dripping, helping prevent moisture damage to walls, flooring, and surrounding materials.
Features of pipe insulation tubing:
![White PE Embossed insulated pipe]( "insulated pipe")
H2: HVAC Compatibility & Applications
H3: Designed for Split & Ductless AC Systems
This kit is suitable for:
Split air conditioner installations
Ductless mini split HVAC systems
Residential homes, apartments, offices, and light commercial environments
Works best when the total line distance between indoor and outdoor units is approximately 35 ft.
H3: Compatible with Common HVAC Refrigerants
Compatible with widely used refrigerants such as R410A, R32, and other standard HVAC refrigerants, meeting typical pressure and performance requirements.
H2: Technical Specifications
| Feature | Detail |
| Line Set Length | 35 ft (10.67 m) |
| Liquid Line Size | 1/4″ |
| Suction Line Size | 1/2″ |
| Material | 99.9% Pure Copper |
| Insulation | Factory-applied, UV-resistant |
| Included Accessories | Communication wire, drain hose, wall pipe & cover, flare fittings |
| Applications | Split AC, Ductless HVAC |
| Refrigerants | R410A, R32 & similar refrigerants |
H2: Installation Tips for Best Results
H3: Plan Line Routing Before Installation
Measure the total path between indoor and outdoor units and plan the routing to avoid excessive bends, kinks, or obstructions.
H3: Protect Insulated Lines at Wall Penetrations
Use the provided wall pipe and protective cover to shield copper lines and insulation from abrasion and weather exposure as they pass through walls.
H3: Secure the Line Set With Proper Supports
Use clips, cable ties, or HVAC line brackets to secure long line runs — this minimizes vibration, sagging, and insulation compression.
![Line Set Bag]()
Split System Air Conditioner Installation Kit
Size | Length | Insulation White PE | 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 |
1/4 + 3/8 Split System Air Conditioner Installation Kit used for 0.75TON - 1.0TON mini split air conditioner.
1/4 + 1/2 Mini Split Line Set used for 1.5TON - 2.0TON mini split air conditioning.
1/4 + 5/8 Copper Line Set used for 2.0TON - 2.5TON split air conditioner system.
3/8 + 5/8 Insulated Copper Tube apply for 3.0TON - 4.0TON ductless mini split air conditioner.
3/8 + 3/4 Insulated Copper Tubing used for 4.5TON - 6.0TON split air conditioner installation.
3/8 + 7/8 Insulated Copper Piping apply for 6.0TON - 8.0TON ductless mini split air conditioner.
Air conditioning copper line sets 1/4 + 3/8 used for 0.75P and 1P split air conditioning.
Copper pipe kit 1/4 + 1/2 commonly used for 1.5P and 2P mini split air conditioners.
1/4 + 5/8 Mini Split Installation Kit used for 2P and 2.5air conditioner system.
3/8 + 5/8 Split System Air Conditioner Installation Kit apply for 3P and 4P ductless mini split air conditioner.
3/8 + 3/4 Copper pipe kit used for 4.5P and 6P split aircon installation.
3/8 + 7/8 Split AC Installation Kit apply for 6P - 8p TON ductless mini split air conditioner.
1/4 + 3/8 Mini split line set used for 9000BTU and 12000 BTU split air conditioner.
All copper line set 1/4 + 1/2 commonly used for 12000 BTU and 18000 BTU mini split air conditioners.
1/4 + 5/8 Split AC Installation Kit used for 24000 BTU and 30000 BTU air conditioner system.
3/8 + 5/8 Mini-split line set apply for 36000 BTU and 48000 ductless air conditioner.
3/8 + 3/4 line set kit used for 54000 BTU and 72000 split air conditioner installation.
3/8 + 7/8 Mini Split Installation Kit apply for 72000 BTU - 96000 BTU ductless mini split air conditioner.
Split System Air Conditioner Installation Kit 1/4 + 3/8 used for 9K and 12K split air conditioner.
Mini Split Installation Kit 1/4 + 1/2 commonly used for 12K and 18K mini split air conditioners.
1/4 + 5/8 Split AC Installation Kit used for 24K and 30K air conditioner system.
3/8 + 5/8 Mini-split line set apply for 36K and 48K ductless air conditioner.
3/8 + 3/4 Line set kit used for 54K and 72K split air conditioner installation.
3/8 + 7/8 Insulated Copper Piping apply for 72K - 96K ductless mini split air conditioner.
Why Choose This 35 ft Split System AC Installation Kit
Complete, Ready-to-Install HVAC Solution
This kit includes pre-insulated lines and all essential accessories — no need to purchase parts separately — saving time and simplifying installation.
High-Quality Materials for Long-Term Durability
Crafted with 99.9% pure copper tubing and factory insulation for UV and weather resistance, this kit delivers dependable long-term performance.
Suitable for Residential & Light Commercial Projects
Perfect for a range of installations from homes to small offices and light commercial properties, this kit provides flexibility and reliable HVAC performance.
DABUND FACTORY
We produce Insulated Copper Pipe, Mini Split Line Set and Aluminum Pipe and HVAC Parts
![Factory Profile]( "Factory Profile")
SGS Certificate
Mini Split Line Set is made of Polypropylene or Black Rubber with UV Resistant, meets ASTM E 84, UL94, ASTM D1056 and ASTM G 21
![证书]( "证书")
Exhibition
We join the exhibitions all over the word, just to facilitate customers to experience our mini split line set face to face.
![TRADE SHOW PARTICIPATION]()
FAQ
1.Q:What is your payment terms?
A:TT,L/C AT SIGHT,CREDIT CARD etc
2.Q:What is your delivery terms?
A:EXW, FOB, CFR, CIF etc
3.Q:Are you trading company or manufacturer?
A:Manufacturer
4.Q:May I get a sample?
A:Yes, we can send you 3pieces free samples.
You just charge for the express cost is ok.
5.Q:Can I print my logo?
A:Yes of cause, we accept OEM and ODM.
6.Q:How long is your delivery time?
A:Usually 15-20days, if urgent, we can arrange to do in advance and delivery fast.
7.What does “1/4″ × 1/2″” mean in this installation kit?
It refers to the outer diameters of the tubing: 1/4″ for the liquid line and 1/2″ for the suction line, which are standard sizes commonly used for split AC and mini split HVAC systems.
8.Do I need extra insulation on site?
No — this kit features factory-applied insulation, eliminating the need for additional field insulation in most installation scenarios.
9. Is this installation kit suitable for outdoor use?
Yes — the insulation is UV-resistant and weather-durable, capable of withstanding outdoor conditions when connecting indoor and outdoor split AC units.
10.Is this kit compatible with R410A and R32 refrigerants?
Yes — this kit is compatible with popular modern refrigerants like R410A and R32, meeting standard HVAC system pressure and performance requirements.
