Description
Overview
The MRCOOL DIY 25ft R‑454B Lineset 1/4 x 1/2 is engineered for MRCOOL DIY 9K, 12K, and 18K indoor units, offering a longer, pre‑charged solution for extended installation runs. Each MRCOOL DIY 25ft R‑454B Lineset 1/4 x 1/2 is factory‑sealed, pressure‑tested, and ready for immediate use. With Quick‑Connect fittings, this 25ft 1/4 x 1/2 R‑454B lineset maintains refrigerant integrity while delivering a secure, leak‑proof connection designed for true DIY installation.
Key Features
- 25ft MRCOOL DIY 25ft R‑454B Lineset 1/4 x 1/2 for extended installation distance
- Pre‑charged R‑454B refrigerant
- 1/4″ liquid line and 1/2″ 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 9K, 12K & 18K indoor units
- Ideal long‑run DIY R‑454B lineset option
Ideal For
- Longer installation runs requiring a MRCOOL DIY 25ft R‑454B Lineset 1/4 x 1/2
- Routing around obstacles or extended wall paths
- Homeowners wanting a true DIY installation
- Installations needing a secure, pre‑charged R‑454B lineset
Specifications
| Category | Details |
|---|---|
| Length | 25ft |
| Line Sizes | 1/4″ (liquid) & 1/2″ (suction) |
| Refrigerant | R‑454B |
| Compatibility | MRCOOL DIY 9K, 12K & 18K Indoor Units |
| Fittings | Quick‑Connect |
| Insulation | High‑density, UV‑resistant |
Related Products
- MRCOOL DIY 9K, 12K & 18K 5th Gen Mini‑Splits
- MRCOOL DIY Line Set Couplers
- Line Set Covers
- Wall Mount Brackets






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