Home
HVAC Replacement Parts & Accessories
HVAC Replacement Parts
MRCOOL 25 Foot R454-B Lineset for 18K BTU 5th Gen DIY Series Mini-Splits
MRCOOL 25 Foot R454-B Lineset for 18K BTU 5th Gen DIY Series Mini-Splits
Images
MRCOOL 25 Foot R454-B Lineset for 18K BTU 5th Gen DIY Series Mini-Splits
$274
88
Was
$339.99
Save
$65.11
(19%)
HURRY! Deal ends in
11h 32m 28s
Qty:
1
Scheduled price increase soon!
Ships same business day
Thank you!
We will send you an email notifying you as soon as this item becomes available.
Have questions?
Our NFI-certified experts are here to help!
Product Details
Manufacturer:
MRCOOL
MRCOOL Part Numbers:
DIY25-1412-O
Item Number:
MRC-DIY25-1412-O
UPC:
840255587099
Customer Q&A with Product Specialists
Dale M.
from Texas asked:
What size are the fittings?
The MRCOOL 25 Foot R454-B Lineset features Quick Connect fittings with a 1/4" liquid line and a 1/2" suction line. This lineset is designed for 18K BTU 5th Gen DIY Series Mini-Splits and compatibility with other units is not guaranteed.
Answered by:
Sid G.
on Apr 21, 2026
Showing 1 of
1 Questions and Answers
Thank you for reaching out!
Thank you for your interest in our products. We've received your question and will get back to you shortly — usually within the hour but always within 1 business day. To ensure you receive our response, please add our email address (info@efireplacestore.com) to your email whitelist or address book.
In the meantime, while we prepare our response, keep an eye on your inbox for an email from us. We'll be sending you our exclusive Buyer's Guide, packed with valuable information to assist you in making the best decision for your needs.
If you have any further questions or need immediate assistance, feel free to reach out to us directly at 1-800-203-1642.
Thank you again for choosing eFireplaceStore.com!
Customer Reviews
Thank you!
We appreciate you taking the time to review this product. Lucky for you, we have entered you into this month's sweepstakes. Thanks again!
