Simmons 1722-1 1-1/4-Inch by 36-Inch Well Stainless Steel Drive Points Designed to be driven into all types of soil Jacket over gauze construction is permanently fixed to a perforated steel pipe Design allows the passage of all the sand free water the pipe can carry, with stainless steel jacket and gauze Assembly includes removable threaded point head and factory locked coupling Use with Drive Coupling 946