"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. Compatible With 1/2 HP deepwell jet pump, Accessory Type Jet assembly, Frame Material Cast iron, galvanized, Outlet Diameter in. 3/4. For use with Item# 109261 Requires minimum 4in. well casing"