MC25-1438 MrCool HVAC Accessories Flared HVAC Line Set Kit, 25 Ft. 1/4" x 3/8"

Regular price $126.00 USD
Regular price Sale price $126.00 USD
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Benefits & Features

✅ Efficient Cooling: Flared ends on liquid and suction lines for optimum performance.
✅ Durable Build: Insulation thickness ensures longevity.
✅ Comprehensive Set: Includes both liquid and suction lines for a complete solution.
✅ Easy Installation: Control wire included for hassle-free setup.


Item Dimensions: 29" (D) x 28.5" (W) x 3.5" (H)
Item Weight: 17 lbs
Item Color: Copper

Tonnage: for 9K
LineSet Fitting Type: Flared
Max LineSet Length: 25 Ft

Liquid Line Size: 1/4"
Liquid Line Fitting: 3/8"
Suction Line Size: 3/8"
Suction Line Fitting: 1/2"

Batteries: No
Electronics: No
Chemicals: No
Aerosol: No
Compressed Gas: No
Proposition 65 Warning: Yes
Restricted States: GU PR;VI

MRCOOL provides a range of HVAC accessories, This refrigerant line set (with wire) is designed for mini split systems. It features liquid line with 1/4-inch O.D. flared ends, and suction line with 3/8-inch O.D. flared ends, both with a length of 25ft. The insulation boasts a thickness of 1/2-inch. This set is suitable for air conditioning and refrigeration systems, encompassing both the liquid and suction lines.


  • MrCool — 9K Indoor Olympus Mini Split


  • 25-ft 1/4" x 3/8" Flared Line Set Kit with Control Wire for 9K Indoor Mini Split

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Warning: This product can expose you to chemicals including Lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm:


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Frequently Asked Questions about the MC25-1438 MrCool HVAC Accessories Flared HVAC Line Set Kit, 25 Ft. 1/4" x 3/8"

What is an HVAC Lineset?

An HVAC Lineset is a pair of copper tubes that connect the indoor and outdoor components of a split system air conditioner or heat pump.

Why is it called a Lineset?

It's named Lineset because it consists of two lines – a liquid line that carries refrigerant from the outdoor unit to the indoor unit and a suction line that returns refrigerant from the indoor unit to the outdoor unit.

What is Quick-Connect, and why is it beneficial?

Quick-Connect is a feature that simplifies the connection process during installation, ensuring a secure and efficient fit.

What precautions should I take during installation?

Always follow safety guidelines and adhere to chemical warnings. Wear appropriate protective gear, and ensure proper ventilation when working with refrigerants.

How does the Lineset contribute to energy efficiency?

The kink-resistant and leak-proof design of the HVAC Lineset ensures optimal refrigerant flow, contributing to the overall energy efficiency of the HVAC system.