Description
The MRCOOL DIY 25ft R‑454B Lineset 1/4 x 3/8 is engineered for MRCOOL DIY 6K, 9K, and 12K indoor units, offering a dependable, pre‑charged solution for extending installation distance. Each MRCOOL DIY R‑454B lineset is factory‑sealed, pressure‑tested, and ready for immediate use. With its Quick‑Connect fittings, this 25ft 1/4 x 3/8 R‑454B lineset maintains refrigerant integrity while delivering a secure, leak‑proof connection. Designed specifically for MRCOOL DIY systems, this MRCOOL DIY 25ft lineset supports clean, simple, and reliable DIY installation.
Key Features
- 25ft MRCOOL DIY R‑454B lineset for extended installation runs
- Pre‑charged R‑454B lineset for DIY use
- 1/4″ liquid line and 3/8″ suction line
- Fully sealed Quick‑Connect fittings
- No vacuum pump or gauges required
- Durable insulation for long‑term performance
- Leak‑proof design for reliable operation
- Compatible with MRCOOL DIY 6K, 9K & 12K indoor units
- Ideal long‑run DIY R‑454B lineset option
Ideal For
- Extending installation distance for MRCOOL DIY 6K, 9K & 12K systems
- Routing a 25ft R‑454B lineset around obstacles or long wall runs
- Homeowners wanting a true DIY installation
- Installations requiring a longer MRCOOL DIY lineset
Specifications
| Category | Details |
|---|---|
| Length | 25ft |
| Line Sizes | 1/4″ (liquid) & 3/8″ (suction) |
| Refrigerant | R‑454B |
| Compatibility | MRCOOL DIY 6K, 9K & 12K Indoor Units |
| Fittings | Quick‑Connect |
| Insulation | High‑density, UV‑resistant |
Related Products
- MRCOOL DIY 6K, 9K & 12K 5th Gen Mini‑Splits
- MRCOOL DIY Line Set Couplers
- Line Set Covers
- Wall Mount Brackets






Reviews
There are no reviews yet.