Heating and Cooling Air Conditioning

MrCool LLC

35FT 1/4 X 3/8 LINESET FOR DIY 6K 9K & 12K INDOOR W/ DIY PRO CABLE R454B WHI

$468.61

SKU: M0B6 DIY35-1438C-O

In Stock
In Stock
Ships by Sep 2
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Overview

The MRCOOL 5th Gen DIY Line Set is a 35-foot component designed for installing MRCOOL DIY ductless mini-split systems. This line set is pre-charged with R-454B refrigerant and features 1/4-inch liquid and 3/8-inch suction lines. It is compatible with MRCOOL's DIY 5th Gen 6K, 9K, and 12K air handler units.

Equipped with Quick Connect fittings, it allows for a fast, tool-free installation without the need for vacuuming, charging, or special certifications. The line set is constructed with durable, kink-resistant materials and a leak-proof design for efficient and long-lasting performance.
Show original supplier description
35FT 1/4 X 3/8 LINESET FOR DIY 6K 9K & 12K INDOOR W/ DIY PRO CABLE R454B WHI

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandMrCool LLC
Part NumberM0B6 DIY35-1438C-O

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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