The Hayward RCX11000 Tigershark Impeller is designed for use with Hayward TigerShark QC robotic pool cleaners, providing superior suction power and reliable performance for hassle-free pool cleaning. Compatible with RC9990A, RC9950 and RC9740 models, this power supply label is part of the Totally Hayward system, which has been helping pool owners worldwide maintain maximum efficiency for over 80 years.