What's in this package
Everything shown here ships as part of this package. Select a piece to see its description, specs and manuals.
Description
This MRCOOL 5th Gen DIY line set arrives pre-charged with R-454B refrigerant and connects to compatible 18K indoor air handler units using 1/4" liquid and 1/2" suction lines.
Highlights
- Pre-charged with R-454B refrigerant, so no vacuum pump, additional charging, or special certification is needed to install it.
- Quick Connect fittings allow tool-free connection between the indoor and outdoor units.
- 16 ft. line set length, sized for a compatible 18K indoor unit.
- 1/4" liquid line and 1/2" suction line, matched to this indoor unit capacity range.
- Built with kink-resistant tubing and a leak-proof design for long-term reliability.
Details
Avermont Direct is an authorized MRCOOL dealer. This 16 ft. pre-charged line set is a required component for a DIY installation of a compatible MRCOOL 18K ductless mini-split system, connecting the indoor air handler to the outdoor condenser.
Need Help?
If you have questions about this product before you order, our team is happy to help.
Email: support@avermontdirect.com
Phone: +1 (844) 455-3695
Hours: Monday–Friday, 9AM–5PM
Live Chat: Available 24/7
| Series | 5th Gen DIY Line Set - R-454B |
| Compatible Indoor Units | 18K |
| Line Set Length | 16 ft |
| Fitting Type | Quick-Connection |
| Liquid Line Size | 1/4" |
| Suction Line Size | 1/2" |
| Refrigerant Type | R-454B |
| Refrigerant Volume | 2.12 oz |
| Gross Dimensions | 28.94" D x 4.92" H x 28.94" W |
| Color | White |
| Net Weight | 8.8 lbs |
| Gross Weight | 12.3 lbs |
| SKU | DIY16-1412-O |
- Ships with a California Proposition 65 warning label.
- Not available for shipment to Guam, Puerto Rico, or the U.S. Virgin Islands.
Shipping
- Orders of $200 or more ship free within the contiguous United States. Orders under $200 ship for a flat $9.99.
- In-stock items (shown as “In Stock” on the product page) ordered before 1:00 PM Pacific Time on a business day typically ship within 1–3 business days. Delivery usually takes 3–7 business days after shipping.
- Backorder, Partial Backorder and Custom Order items are not covered by the 1–3 business day processing time. Their estimated restock or ship time is shown in the stock status on the product page before you order.
- Large items ship by freight and are typically delivered curbside. Smaller items ship by ground carrier such as FedEx or UPS.
- We ship to the 48 contiguous states. We do not ship to Alaska, Hawaii or P.O. boxes.
- Please inspect your delivery on arrival and report any concealed damage or missing parts within 24 hours.
Returns
- Returns can be requested within 30 days of delivery. Items must be unused, uninstalled, in new resalable condition and in their original packaging, including the pallet if delivered on one.
- Approved returns are subject to a 15% restocking fee, and return shipping costs are the customer’s responsibility unless the return is the result of our error.
- Installed or used products, custom and made-to-order items, clearance or final-sale items, and replacement parts and accessories are not eligible for return.
Full Shipping Policy Full Return Policy Questions? +1 (844) 455-3695



