"Deep well jet assembly is for use with Wayne 1/2 HP deep well jet pump. Designed for applications drawing water from 90 to 100 feet down. Accessory Type Jet assembly, Outlet Diameter in. 3/4, Compatible With 1/2 HP deepwell jet pump, Frame Material Cast iron, galvanized. For use with Item# 109261 Requires minimum 4in. well casing"