MRCOOL DIY Pre-Charged Linesets - Select Your System & Length

The MRCOOL DIY® Quick Connect® Line Sets are 100% accurately pre-charged with R-410A refrigerant. This makes installation quick and easy with no vacuuming required.

The 16' and 25' lineset does NOT come with communication wire. However, if you are purchasing a MRCOOL DIY system with an Air Handler, a 25' communication wire is included in the Air Handler box.

How does MRCOOL Line Set "set" itself apart?

• Kink Resistant
• Easy to Use Screw-On Connectors
• Quick Connect® Valves
• No vacuum needed (you heard that right!)
• Leak Proof

This copper line set connects the 4th Generation MRCOOL DIY Condenser to the MR COOL DIY Air Handlers.

You must select the correct size of lineset for your unit, either 9K-12K-18K or 24K and 36K Air Handlers.

For Multi-Zone systems, one line set per indoor unit is required to ensure the system will function properly.

Discover the MRCOOL DIY Line Set, designed for effortless compatibility with all MRCOOL DIY ductless mini-splits. These premium line sets work seamlessly with MRCOOL DIY Single Zone, Multizone, and Central Ducted Mini Split Systems, offering a versatile solution for various installation needs.

Pre-charged with R410A refrigerant, the MRCOOL DIY Quick Connect Line Set features easy-to-use Quick Connect fittings for simple, tool-free installation. Compatible with both Single and Multi-Zone Systems, this line set connects the outdoor condenser to the indoor air handler without the need for cutting, brazing, vacuuming, or charging, thanks to No-Vac technology. The kink-resistant design makes installation smooth and hassle-free.

Each line set is equipped with a durable 3/4 in. UV Protective Insulation Sleeve, safeguarding against sun exposure, weather elements, and potential animal damage, ensuring long-lasting reliability.

Available in 16ft, 25ft, 35ft, 50ft, 66ft and 75ft options, these line sets provide flexibility for various installation lengths. The 35ft and longer options also include an extended DIY Pro Cable for quick and reliable connectivity.

Need extra length? You can easily extend your system up to 75ft per zone, by combining two or more DIY line sets using a coupler, allowing for customizable installations.

For 66ft setups, this bundle includes:

- MRCOOL DIY 50ft Line Set

- MRCOOL DIY 16ft Line Set 

- MRCOOL DIY COUPLER Set + 75ft MC-5 Cable

For 75ft setups, this bundle includes:

- MRCOOL DIY 50ft Line Set

- MRCOOL 25ft Line Set

- MRCOOL DIY COUPLER Set + 75ft MC-5 Cable