Controls and maintains 15 psi which is the ideal cooking pressure and is obtained when the pressure regulator begins a gentle rocking motion. For Presto pressure cookers or canners. Substitute for Model No. 82063. Fits Model No. 40, 60, 103, 403, 603, 40, 104, 46, 50, 60, 204, 404, 604, 744, 106, 206, and 406.