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Mueller - 1/4" x 3/8" Insulated Mini Split Line Set - 25' Length - Factory Flared
Model:
MLS143812-25
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Features
- Simple Installation
- With factory installed insulation, these line sets come fully prepared for immediate installation, saving you time and money.
This 25-foot line set features flexibility for easy installation. These mini split line sets come with both the liquid and suction lines insulated, and are required to complete the installation of your mini split system.
California residents see
Warning: This product can expose you to chemicals including Carbon black (airborne, unbound particles of respirable size) which is known to the State of California to cause Cancer.
For more information go to: www.p65Warnings.ca.gov
Specifications
MLS143812-25

Overview
Product Category
Mini Split Accessories
General Information
Type
Mini Split Line Set
Product Category
Mini Split Accessories
Connection Type
Flared
Line Set Size
1/4" x 3/8"
Dimensions
Insulation Depth
1/2 Inch
Suction Connection Size
3/8 Inch
Liquid Connection Size
1/4 Inch
Product Length
25 Feet
Product Weight
7 Pounds
Shipping Height
33 Inches
Shipping Width
3 1/2 Inches
Shipping Depth
34 Inches
Shipping Weight
9 Pounds
Reviews
(25)
Mueller MLS143812-25 Reviews & Ratings
Customer Rating
4.60
(25 Ratings)
67% recommend this product
5
(18)

4
(5)

3
(1)

2
(1)

1
(0)


Line Set
By G Fast
Kansas
Review Posted 02/14/2023
Everything was as advertised and worked well
G Fast Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
I'd Buy It Again
Cons:
None

Great
By Holly C
Bloomington, Idaho
Purchased 02/24/2021 |
Review Posted 03/04/2021
Our company uses these frequently. We have always had great results with them. They work as they should. I ordered the wrong quantity, called up eComfort on a Friday and they had the 5 extras that I needed in my shop Monday. I was so impressed with their customer service.
Holly C Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5

Good product for the money
By Thomas K.
Seaville, New Jersey
Purchased 07/06/2020 |
Review Posted 08/21/2020
Supplier was very courteous and expedited the purchase as I had hoped.
Thomas K. Recommends This
Was this review helpful?
Rating Breakdown
4/5
4/5
5/5
4/5

Great Quality Line Set
By David N
Charleston, South Carolina
Purchased 07/08/2020 |
Review Posted 08/17/2020
My experiences installer was impressed with the insulation used on these. Said it lasts much longer than the typical black foam coverings. Flare fittings sealed right up the first time. Very convenient to have them already made up.
David N Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Easy To Use, Durable, Fast, Id Buy It Again

Good lineset for ductless mini split ac
By Robin B.
Roslyn Heights, New York
Purchased 04/28/2020 |
Review Posted 06/09/2020
The copper tube was easily bent by hand, the isulation aided with this greatly without any kinks. The downside was the flares, they weren't to my satisfaction so I cut them off and reflared the ends using the Hilton flaring tool and also used the nuts that came with the Mitsubishi equipment as they were heavier and of better quality.
Robin B. Recommends This
Was this review helpful?
Rating Breakdown
4/5
4/5
4/5
4/5
Pros:
Easy To Use, Light Weight, Id Buy It Again
Cons:
Expensive

Part of the installation kit making installation a breeze!
By Walt W.
Ellenboro, North Carolina
Purchased 04/30/2020 |
Review Posted 06/09/2020
These lines are absolutely necessary and came pre-insulated with the proper fittings for the unit I purchased!
Walt W. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5

Happy customer
By Laurie C.
Arthurdale, West Virginia
Purchased 06/08/2019 |
Review Posted 08/14/2019
Everything worked exactly as it was explained excellent customer service excellent price would recommend this to anybody and plan on using them again
Laurie C. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5

A Little Pricey But High Quality And Worth It IMO
By B M
Northern, Colorado
Purchased 06/24/2019 |
Review Posted 07/19/2019
JMF seems to be one of the only manufactures who makes mini split linesets over 65'. I was impressed by the quality of the insulation I also ordered a different brand of lineset and comparably the JMF stuff is noticeably better - it's the same stuff that Mitsubishi is using on the pipe in the back of their indoor units if that's any indication. The rest of my project will likely be JMF lineset since I want this project done properly all the way through.
B M Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
4/5

Good Product, Greater Service
By Henry M
Massachusetts
Purchased 06/20/2019 |
Review Posted 07/12/2019
My shipment arrived with the box opened and a piece missing.
I called eComfort and I had a new set the next day!
I called eComfort and I had a new set the next day!
Henry M Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5

Love the EZ Pull Insulation This 5/8 Tubing Is Very Difficult to
By Millis P.
Hendersonville, North Carolina
Purchased 01/29/2019 |
Review Posted 03/17/2019
I have used JMF Line Sets in smaller diameters and have been very satisfied. The EZ Pull insulation is the best. This 5/8" tubing, unfortunately, was very difficult to bend -- even with a generous radius -- without kinking. Kinked it on the first try. Cut it off and very carefully tried again. Kinked it again. At this point it was too short to try a third time so I salvaged the insulation and bought a roll of 5/8" USA made Wieland Refrigeration Tubing. The Wieland tubing was noticeably softer and easier to bend. If I ever have to do an installation with a 5/8" JMF line set again, I will cut off a flare, remove the insulation, bend the tubing with a ratchet bender, then put the insulation back on. Note that a spray can of dry lubricant makes putting the insulation back on easier.
Millis P. Does Not Recommend This
Was this review helpful?
Rating Breakdown
5/5
2/5
2/5
2/5
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Mueller - 1/4" x 3/8" Insulated Mini Split Line Set - 25' Length - Factory Flared


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