"This Snap Lock Coupling threads onto the 5/16 inch Cable 48-53-0065 (25 ft), 48-53-0070 (30 ft), or 48-53-0085 (50 ft). The Snap Lock Coupling can then accept either the 5/16 inch Drop Head Assembly 49-16-0015 or the 3/4 inch Cutter 48-38-0055 depending on the type of clog you are removing. "