Line Set Kit for 12k & 18k BTU MrCool Ductless Split System

Item: HA11924
Model: MCXX-1412
Condition: New

Line Set Kit for 12k & 18k BTU MrCool Ductless Split System Zoom

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Warranty Terms

For a full description of all warranties applicable to this product as well as individual manufacturer requirements, please review the manufacturer's consumer brochure and/or product warranty documents.  Online warranty registration must be completed within 60 days of installation.  Due to state laws, online registration is not required in California or Quebec. Call for warranty availability on scratch & dent and surplus items.

For additional warranty information, click here.


Model MCXX-1412
Line Set Connection Type Flared
Liquid Line Size 1/4 inch
Suction Line Size 1/2 inch
System Application Type Ductless Split Systems
Warranty None
Weight (lbs) 1.0000
California Residents see Prop 65 WARNING


Q & A

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I recently ordered and received the HA11844 MRCOOL system. I want to know if this lineset would work for that model? The 25 ft lineset that came with it is too short for my application and i will need to order a longer set.
i bought an Advantage series that came with a 16' line set. can I connect 2 16' lines sets to get the distance I need?
What come with the installation kit?
Are these lines compatible with Mr cool DIY-MULTI4-36HP230 unit if I have technician charge the system?
Can I use this with a DIY mini-split pump if I get it professionally installed?
I am looking for price and availability of a precharged 25 ft. compressor line set for the MrCool E Star series 18 K BTU DIY. If the precharged line is not available, is there a standard 25 ft line set available that can be connected to this unit and charged by a technician.

I live in Chase, British Columbia, Canada. V0E1M2. What would the shipping charge be?

Dennis Poag 14 SEP 2020
Is it pre-charged
I have a DIY 27K Mr. Cool Mini split with 2 Air Handlers. Can I use a quick release 50ft line set on 1 of the Air Handlers?

Thank You,
Will the 16" work on my MrCool DIY-12-HP-115B25 pre charged unit. I just bought this kit with 25' lines but would rather shorten them so I don't have all the extra line coiled at the heat pump. Is it true that the Compressor has all the refrigerant in it not the lines?
Can you build your Mr. cool mini split à la cart and is the 16 foot coil pre-charged?
Do I need a special connector to connect the line sets? Can the line set also be cut to a desired length?
I'm trying to figure out if I can buy this for my Multi Zone DIY since my bundle came with the 25 ft for the triple zone. The two units are OK with the 25 ft, but my third unit needs the 50 feet. Am I able to exchange the third 25 ft set for a 50 ft?
Do the line set for Mr Cool systems are made by Mr Cool, or you include generic lines? I would like to get Mr Cool lines if I buy one of their systems.
Can this line set can be installed on the 2nd generation unit ?