We use cookies to ensure fast, reliable, and secure operations, and to give you the best possible experience when using our website. We use both session-based cookies and persistent cookies. We also allow the use of third-party cookies by certain authorized third parties with whom we execute marketing campaigns. For more information, please refer to our Privacy And Cookie Policy.


Get $100 Cash Back on Your Qualifying Purchase
- Spend over $1000 on heating and air equipment.
- Share this video publicly on your existing Facebook news feed. https://youtu.be/O4nmrlbF0aA
- Email a screenshot of the video on your facebook profile to [email protected] along with your order number.
- Get a check mailed to you for $100.
Limited Time Offer. Act Now!
Rebate only valid for qualifying purchases made after September 19, 2022 until further notice. Rebate claim limited to one per customer. Purchase must be made prior to sharing video. Please allow 1-2 weeks for processing. May not be used in conjunction with any other offer or discount. Video privacy setting must be public.
Contact an expert now.
Once you’ve decided on your 6K, 9K, or 12K MrCool DIY system, the next step is to determine the distance you’ll need between the air handler and condenser to choose the right line set. For setups where the outdoor unit is placed relatively close to the indoor unit, the 1/4" x 3/8" MrCool DIY Ductless Split System Line Set - 25 Feet - R454B gives you flexibility without paying for excess. Using a 1/4" liquid line size, a 3/8" suction line size, and an overall length of 25 feet, this MrCool Line Set quickly and easily hooks up to your MrCool split system. Designed to support a do-it-yourself setup, the set of straightforward installation guidelines ensure you can connect the R454B refrigerant line effortlessly then test for leaks, promising maximum efficiency. Coming in a white shade that compliments the rest of the system, this quick-connect MrCool Line Set is the perfect fit for your home. Acquire this 1/4" x 3/8" MrCool DIY Ductless Split System Line Set - 25 Feet - R454B today and give yourself top-tier comfort with ease.
| Model | DIY25-1438-O |
|---|---|
| UPC | 840255589161 |
| Product Length (in) | 300 |
| Line Set Connection Type | Quick Connect |
| Liquid Line Size | 1/4 inch |
| Weight (lbs) | 10.400000 |
| Suction Line Size | 3/8 inch |
| System Application Type | Ductless Split Systems |
| Warranty | None |
| California Residents | see Prop 65 WARNING |























































