3/8" & 5/8" MrCool DIY Coupler Kit - No Communication Wire for 24k & 36k Mini-Split Air Handlers

MRCOOL DIY Coupler Kit – 3/8" & 5/8" (No Communication Wire)

Compatible with both R-410A and R-454B MRCOOL Systems

Extend your MRCOOL DIY mini split line sets effortlessly using the 3/8" & 5/8" MRCOOL DIY Coupler Kit. Designed specifically for 24k and 36k BTU mini-split air handlers, this kit is perfect for adding extra length to your system without the need for additional communication wire.

• Works with older 4th Gen R-410A and newest 5th Gen R-454B MRCOOL systems
• Includes couplers only – no communication wire
• Ideal for line set extensions on 24k and 36k air handler models
• Ensures a secure, leak-free connection for optimal performance
• DIY-friendly – no vacuum or special tools needed

Whether you're upgrading to the latest generation or expanding your current setup, this coupler kit offers a simple, effective, and reliable solution for extending your MRCOOL pre-charged line sets. Upgrade your comfort and flexibility with confidence.