SKU: 97643033885

MRCOOL 25FT 1/4" x 3/8" Flared Line Set Kit for 9K & 12K Mini Splits (MC25-1438)

Sale price$119.70 Regular price$133.00
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Ships within 48 hours · Estimated delivery Jul 23 - Jul 28

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Description

MRCOOL 25FT 1/4" x 3/8" Flared Line Set Kit for 9K & 12K Mini Splits (MC25-1438)Ensure a secure and professional connection between your indoor air handler and outdoor condenser with the MRCOOL 25FT 1 4" x 3 8" Flared Line Set Kit (MC25 1438). This high quality line set is designed for 9K and 12K wall mounted air handlers or ceiling cassette systems and delivers reliable performance for residential and light commercial applications. System Compatibility This line set is compatible with: MRCOOL Olympus Series 9K & 12K systems

Ensure a secure and professional connection between your indoor air handler and outdoor condenser with the MRCOOL 25FT 1/4" x 3/8" Flared Line Set Kit (MC25-1438). This high-quality line set is designed for 9K and 12K wall-mounted air handlers or ceiling cassette systems and delivers reliable performance for residential and light commercial applications.

System Compatibility

This line set is compatible with:

  • MRCOOL Olympus Series 9K & 12K systems
  • MRCOOL Advantage Series 9K & 12K systems
  • Any mini split system requiring a 1/4" liquid line and 3/8" suction line

Compatible with both:

  • Wall-mounted air handlers
  • Ceiling cassette air handlers

Always verify line size requirements in your system specifications before ordering.

Key Features

Correct Line Size for 9K & 12K Systems
Configured with 1/4" liquid and 3/8" suction lines, ideal for most 9K and 12K mini split applications.

Flared Connections
Factory-flared ends provide secure, leak-resistant connections when properly installed and torqued to manufacturer specifications.

25-Foot Length
Provides flexibility for standard residential installations, including homes, rental properties, garages, additions, and light commercial spaces.

Durable Copper Construction
Built from high-quality copper tubing designed to withstand long-term HVAC operation.

Not Pre-Charged
This line set is not pre-charged with refrigerant and must be properly evacuated and charged by a licensed HVAC professional.

Specifications

  • Length: 25 Feet
  • Line Size: 1/4" Liquid x 3/8" Suction
  • Connection Type: Flared
  • Compatible BTU Sizes: 9K and 12K
  • Pre-Charged: No

Installation Notes

  • Confirm required line size with your specific condenser and air handler.
  • Properly torque all flare connections to manufacturer specifications.
  • Secure the line set to prevent vibration or damage.
  • System must be vacuumed and professionally charged before operation.

This 25FT 1/4" x 3/8" flared line set provides a dependable connection solution for 9K and 12K mini split systems, delivering long-term performance and installation flexibility for residential and light commercial applications.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 97643033885

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A Miller
Massapequa, US
★★★★★ 4
Looks great, however had size issue
Color: Blue, Size: Small
I ordered the small, however the sleeves were too long and will return it. The shirt looked great and seemed to be of very good quality. Certainly would have kept it if not for the sleeves.
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Reviewed in the United States on January 22, 2026
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Arizona
Belleville, US
★★★★★ 5
Excellent!!
Color: Beige, Size: Large
Really loved these shirts for my hubby. They were pretty good quality shirts. Love the linen material. Also love the buttons on the collar which my husband prefers to wear with his jackets. They are very comfortable. As far as size, I ordered according to the size chart. He typically wears a size Large. According to the size chart an XL would best so that’s what I ordered. But I truly believe that a size L would’ve been better. So I would say they are true to size. My husband weighs 205, and has muscles and a size L would’ve been just fine. I ordered 3 because I loved them. I’ll stay with the XL. But if I were to order more I’ll preorder a Large. Very happy with this purchase. They are not slim fit either. Just for an FYI.
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Reviewed in the United States on February 22, 2026
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Nick Wilding
Chelsea, US
★★★★★ 5
Quality + Fit + Value - VERY pleasantly surprised!
Color: Black, Size: Large
I stand at 6.0125" 200lb (showing signs of a Dad bod)., and the large was a perfect fit for me. The quality exceeded expectations, perfect thickness and weight for the colder months. I actually set this up between a Boss & Ted Baker (my-go's to in past 10-years) and asked my date to pick one of three - she grabbed this shirt. if you're looking to re-evaluate how much your spend on dress shirts - this Brand will not disappoint in terms of quality and fit. If your wearing brands like Express, Banana or even worse - Untuck-it, consider this a marginal upgrade. I'm going to by a few more and I'll update if anything changes.
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Reviewed in the United States on February 1, 2026
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Michelle Spencer
Massapequa, US
★★★★★ 5
Great shirt
Color: Beige, Size: Medium
Great fit, seemed like thin to medium weight fabric which is perfect for him. Lil with any linen blends, they wrinkle so it is more of a casual wear. Washes great and is super soft when wearing.
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Reviewed in the United States on March 16, 2026
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Bleau P
Fort Morgan, US
★★★★★ 5
Bleau
Color: Beige, Size: Large
Very Good , fits very well
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Reviewed in the United States on May 7, 2026

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