Line Set 1/4 x 1/2 – 50′ for Mini Split


Warehouse Inventory:

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

15 in stock (can be backordered)


Mueller Industries Streamline Mini Split Line Set

50′ line set 1/4 x 1/2

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, a mini split line set 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

How It’s Made

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Additional information

Weight 5 lbs
Dimensions 10 × 10 × 6 in


Mueller Industries Streamline mini-split line set, 50ft length, 1/4″ x 1/2″.

A line set is a copper tube used to connect the indoor a/c unit to the outdoor condensing unit.

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