The Hayward TigerShark pool cleaners require the Hayward RCX11208 TigerShark Venturi Assembly to function properly. This venturi assembly, made of tough plastic, is an essential component of the TigerShark robotic pool cleaner's water propulsion system. The venturi assembly, which measures 4" in length, 5.5" in width, and 2.25" in depth, is intended to efficiently provide a high-veloc... https://www.usapoolshop.com/rcx11208-hayward-tigershark-venturi-assembly