Line Set 1/4 x 1/2 – 25′ for Mini Split

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Available for pick-up in Atlanta, Birmingham, Jacksonville, Nashville, Savannah and Tampa or we will ship anywhere within the contiguous United States.

129 in stock (can be backordered)

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1/4 x 1/2 – 25′ Mini Split line set

Mueller Industries Streamline Mini Split Line Set

This line set fits
12,000 BTU 22 Seer KW12HQ2B8D
18,000 BTU 18 Seer KW18HQ3B8D

Streamline® Advantages

  • Copper Tube UL Recognized to 700 PSI
    • R410A Engineered and Tested
    • 10 Year Warranty


  • Meets ASTM B1003, C-534 & E-84 Fire & Smoke Rating
    • Closed Cell Elastomeric Foam – Resists Mold & Mildew and is UV Retardant

All line sets have flared fittings and 1/2″ insulation.

Please be sure to select the correct fitting size and length for your application.

What is a line set?

A line set is a copper tube used to connect the indoor air conditioning unit to the outdoor condensing unit, for the purpose of moving refrigerant through the system. Although these are small accessories, this is an essential component to complete the installation of any ductless mini-split system or unitary split system. Due to maintenance issues, when replacing old units it’s important to also replace the line sets. You don’t want to have a completely new system with 20-30 year old components. If you have any questions about selecting the correct line sets, please email

1/4 x 1/2 – 25′ Mini Split line set

How It’s Made

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Additional information

Weight5 lbs
Dimensions10 × 10 × 6 in


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