MRCOOL

DIYCOUPLER-38 + DIYCOUPLER-58 (Two Sets) w/75 ft of Communication Wire

Name: DIYCOUPLER-38 + DIYCOUPLER-58 (Two Sets) w/75 ft of Communication Wire
Brand: MRCOOL
SKU: DIYCOUPLER-3858K75
Price: 196.00 USD
Availability: InStock

~~Regular price~~ $196.00 $196.00 Sold out

Shipping calculated at checkout.

Currently, this item has stock

Authorized MRCOOL dealer - full factory warranty
Free freight over $999 - ships in 1-2 business days
Real technical support from a certified HVAC pro

Product details

Replacement fittings for MRCOOL line set connections. The exact sizes and quantity are listed in the product title. Communication wire is included as listed in the title.

Fitting sizes have to match both the line set and the equipment ports, so compare them against your existing components before ordering. No-Vac and QuickConnect couplers seal without a vacuum pump, which keeps the connection within reach of a careful DIY install.

Shipping and Payments

We process orders within 1-2 business days. Once your order has shipped, you will receive a confirmation email with tracking information.

Estimated Delivery Times
Standard Shipping: 3-7 business days
Expedited Shipping: 2-3 business day
Express Shipping: 1-2 business days
Delivery times may vary during holidays, promotions, or due to carrier delays.

Order Tracking

Once your order ships, you will receive a tracking number via email. Please allow up to 24 hours for tracking information to update.

Refund and returns

We want you to love your purchase. If you're not completely satisfied, you may return eligible items within 30 days of delivery.

Return Requirements

Items must be:
Unused and in original condition

Returned with original packaging
Accompanied by proof of purchase
Non-Returnable Items

The following items cannot be returned:

Gift cards
Final sale items
Personalized or custom-made products
Digital products and downloads

Documents & downloads

Manuals, warranty terms and certification documents for this system.

Installation guide PDF Download

DIY installation

See how DIY works

Or book certified installation

Our licensed team installs what we sell - sized right, warrantied, done in a day.

Book installation

Questions & answers

Before you buy

Everything homeowners ask about installing and sizing a MRCOOL system.

Talk to a certified pro →

Which line set size do I need?

Match the line set to the connection sizes on your indoor and outdoor units, which appear in the specifications for each unit. Using the wrong diameter restricts flow and hurts performance.

How long can the line set be?

Every system lists a maximum line set length in its specifications. Staying inside that limit protects capacity and compressor life, so measure your run before ordering.

Does this arrive pre-charged?

MRCOOL QuickConnect line sets arrive pre-charged and sealed, so they connect without a vacuum pump. Check the specifications on this listing to confirm exactly what is included.

Can I reuse my old line set?

Reusing a line set from a different refrigerant is not recommended, because residual oil and moisture can damage a new system. A new matched line set is the safer choice.