PRESS = Press-connect fitting (installed with a compatible press tool, no brazing required)
LR = Long Radius
90 ELL = 90-degree elbow
Short product description:
ACR Press Long Radius 90° Elbow – Copper press fitting for ACR (air conditioning and refrigeration) copper tubing that provides a 90° change in direction with a long-radius sweep to reduce pressure drop and improve refrigerant flow. Compatible with approved ACR press systems.