MRCOOL 5th Gen Pre-Charged Mini Split Line Set – R-454B

MRCOOL Gen 5 Pre-Charged Mini Split Line Set – R-454B (DIY Ready)

Upgrade or extend your MRCOOL DIY 5th Gen mini split system with our genuine MRCOOL Gen 5 Pre-Charged Mini Split Line Set – R-454B. Designed for fast, clean, and easy installation, each line set is pre-charged with R-454B refrigerant and comes ready to connect to compatible MRCOOL air handlers and condensers without the need for special tools, vacuum pumps, or refrigerant gauges.

Whether you're installing a single zone or configuring a multi-zone setup, these pre-charged, quick connect line sets make the job simple and DIY-friendly. Our line set options range from standard 16 ft and 25 ft sizes (which include control wire built into the air handler) to longer combinations using our MRCOOL coupler kits and extended control wire. All sets are designed for MRCOOL's 5th Generation DIY mini splits using the environmentally friendly R-454B refrigerant.

Key Features:

• Pre-Charged with R-454B Refrigerant – No vacuuming or refrigerant handling required
• DIY Quick Connect Installation – Perfect for homeowners and contractors alike
• Multiple Length Options – From 16 ft up to 75 ft (with couplers and control wire)
• Flexible Configuration – Ideal for new installations, replacements, or extending your existing MRCOOL system
• Genuine MRCOOL OEM Product – Guaranteed compatibility with MRCOOL Gen 5 R-454B systems

Available Length Options:

• 16 ft (Control Wire pre-attached to the air handler)
• 25 ft (Control Wire pre-attached to the air handler)
• 35 ft (35' + Control Wire)
• 41 ft (25' + 16' + Couplers + Control Wire)
• 50 ft (50' + Control Wire)
• 60 ft (25' + 35' + Couplers + Control Wire)
• 66 ft (50' + 25' + Couplers + Control Wire)
• 70 ft (35' + 35' + Couplers + Control Wire)
• 75 ft (50' + 25' + Couplers + Control Wire)

Product Compatibility:

Compatible with all MRCOOL 5th Gen DIY mini split systems designed for R-454B refrigerant, including wall-mounted air handlers and multi-zone condensers. Please check your system requirements and match the correct lengths and air handler pairing for optimal performance.

Why Choose MRCOOL Pre-Charged Line Sets?

With MRCOOL’s patented DIY technology, our pre-charged line sets allow homeowners to install their own HVAC systems safely and confidently. No licensed technician is required for setup when following the provided instructions, making this a cost-effective and stress-free solution for any home.

Want to learn more about pre-charged line sets? Click here to read our detailed guide on how MRCOOL DIY pre-charged systems work and why they save you money.

MRCOOL R-454B Pre-Charged Line Set Specs: