Description
Product Overview
Complete Mini-Split Installation Kit — 16-Foot Line Set Included
Everything you need for a professional mini-split installation in one kit. The MRCOOL MC16-3858 includes a 16-foot pre-insulated 3/8×5/8 inch copper line set, communication wire, and drain hose — the three components needed to connect your indoor air handler to the outdoor condenser. Sized for 9K–18K BTU systems.
Technical Specifications
| Brand | MRCOOL |
|---|---|
| Model / SKU | MC16-3858 |
| Series | MRCOOL Accessories |
| Product Type | Accessory | Installation Kit |
| Coverage Area | N/A |
| Refrigerant | Compatible with R-410A, R-454B, R-32 |
| Electrical | N/A |
| Weight | 12.0 lbs (5.4 kg) |
| Warranty | MRCOOL Manufacturer Warranty (register within 30 days) |
Installation & Product Tips
- The 3/8×5/8 diameter is for 9K–18K BTU systems — verify with your system's installation manual
- Measure the actual routing distance before ordering — 16 feet covers most through-wall installations
- The included communication wire connects the indoor and outdoor units for control signals
- Route the drain hose downward with a minimum 1/4-inch per foot slope for proper drainage
- A licensed HVAC technician must braze connections and evacuate the system before charging
Frequently Asked Questions
What is included in this kit? +
What BTU systems use 3/8×5/8 line sets? +
Is 16 feet enough for my installation? +
Is this line set pre-charged? +
What refrigerants are compatible? +
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
Need help selecting the right system? Contact our HVAC experts for free pre-sale consultation. →
Installation & Troubleshooting Guides
Model / SKU
MC16-3858
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