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- SEER2 rating helps consumers compare energy efficiency when choosing a new air conditioner. Higher SEER2 ratings mean significant utility savings. The federal minimum is 14 SEER2 with ratings into the 20 SEER2 range. A 20 SEER2 uses half the energy of a 10 seer much like MPG ratings for vehicles.
Pre-Insulated Copper Refrigerant Line Set For 4-Zone Ductless Mini-Split Systems
- Select the pre-insulated copper refrigerant line set(s) needed for your ductless mini-split system
- Available in multiple lengths and flare sizes for various indoor unit capacities
- Compatible with 4-zone ductless mini-split applications
- SEER2 rating helps consumers compare energy efficiency when choosing a new air conditioner. Higher SEER2 ratings mean significant utility savings. The federal minimum is 14 SEER2 with ratings into the 20 SEER2 range. A 20 SEER2 uses half the energy of a 10 seer much like MPG ratings for vehicles.
As low as $348.00
Pre-Insulated Copper Refrigerant Line Sets for Ductless Mini-Split Systems
Flexible insulated copper line sets designed for reliable mini split HVAC installations.
These pre-insulated copper refrigerant line sets are designed for use with ductless mini split heating and cooling systems in residential and light commercial applications. Available in multiple line sizes and lengths, these insulated copper line sets help support efficient refrigerant transfer, dependable HVAC performance, and flexible installation routing between indoor and outdoor units.
Constructed from durable copper tubing and protected with factory-installed insulation, these line sets help reduce energy loss and condensation while supporting long-term system reliability. Whether you are installing a new ductless mini split system or replacing an existing line set, multiple sizing configurations and lengths are available to accommodate a wide range of compatible indoor unit capacities, installation requirements, and equipment layouts.
Available Line Set Configurations
Features & Benefits
- Pre-insulated copper refrigerant line sets for ductless mini split systems
- Available in multiple line sizes and lengths to support a variety of installation requirements
- Designed to support efficient refrigerant flow and overall HVAC system performance
- Factory-insulated tubing helps reduce condensation and energy loss
- Durable copper construction for long-term reliability
- Flexible copper tubing for easier installation and routing
- Suitable for residential and light commercial HVAC applications
- Compatible with many mini split heat pump and air conditioning systems
- Available in configurations for 9K, 12K, 18K, and 24K indoor unit applications
- Ideal for new installations or replacement ductless line set projects
- Select models are available in lengths up to 50 feet for greater equipment placement flexibility
- Certain 50-foot configurations may require field flare preparation during installation
Who installs the AC unit after I purchase it?
ACDirect does not yet provide installation services directly. However, most of our customers successfully arrange installation through local licensed HVAC contractors. These systems are designed for professional installation and typically include the components your installer will need.
Here’s how it works:
- Hire a licensed HVAC technician in your area
- Use platforms like Angi, Thumbtack, or a local HVAC directory to find reliable professionals
- Confirm your installer is experienced with the system type you’re purchasing
Note:
Please be aware if you choose to install HVAC equipment yourself and don’t possess proper HVAC licensing, you will void the manufacturer’s factory warranty. If you are capable of a factory-compliant installation yourself, you will need a licensed HVAC contractor to sign off on your work, fully confirming factory-compliant workmanship.
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