Description
Tool-Free 25-Foot Line Set for MRCOOL DIY 18K BTU Indoor Air Handlers
Extend your MRCOOL DIY 18K BTU mini-split installation with this 25-foot precharged line set featuring the DY quick-connect fitting. Pre-charged with R-410A and designed specifically for MRCOOL DIY 18K BTU indoor air handlers, this line set allows tool-free installation without a vacuum pump. The 1/4×1/2 diameter is sized for 9K–12K BTU systems.
Technical Specifications
| Brand | MRCOOL |
| Model / SKU | DIY25-1412C-O |
| Series | DIY Series |
| Product Type | Accessory | Precharged Line Set |
| Coverage Area | N/A |
| Refrigerant | R-410A (Precharged) |
| Electrical | N/A |
| Weight | 10.0 lbs (4.5 kg) |
| Warranty | MRCOOL Manufacturer Warranty (register within 30 days) |
Installation & Product Tips
- This line set uses the DY quick-connect fitting specific to MRCOOL DIY 18K BTU indoor air handlers
- Do not cut or modify the precharged line set
- Route carefully to avoid kinks — use a tube bender for turns
- Coil any excess line set near the outdoor unit without restricting airflow
- Verify this is the correct line set for your specific MRCOOL DIY model
Frequently Asked Questions
Warranty Information
All MRCOOL products sold by HVACProSales come with the full MRCOOL manufacturer warranty. Register your product at the MRCOOL registration portal within 30 days of installation to activate full warranty coverage. Residential products typically include a 7-year parts warranty and 5-year compressor warranty when registered. Commercial products carry a 5-year parts warranty.
Why Buy From HVAC PRO Sales?
15+ Years HVAC Experience | 500+ Systems Installed | Authorized MRCOOL Dealer
- Authorized MRCOOL Dealer — Official warranty support
- 15+ Years HVAC Industry Experience
- Expert Pre-Sale Technical Consultation
- Price Match Guarantee on all authorized MRCOOL products
- Same-day processing on in-stock orders over $199
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