The Instantor RP518400 ACR R-Press 5/8" Tee is a high-performance press fitting designed to create a branch connection within refrigeration, air conditioning, heat pump, VRF and VRV pipework systems. As part of the Instantor R-Press ACR range, it provides a fast, reliable, and flame-free alternative to brazing, helping installers reduce installation time while maintaining secure, leak-free connections. Manufactured for use with 5/8" ACR copper tube, this press-fit tee enables a neat and efficient three-way connection while maintaining the integrity of the refrigeration circuit. Designed for high-pressure ACR applications, it is suitable for use with approved R-Press tools and jaws and is ideal for both new installations and retrofit projects. Supplied in packs of 2, the RP518400 delivers a safe, efficient, and professional solution for modern refrigeration and air conditioning installations.