This is a Lochinvar Water Pressure Switch replacement for the EnergyRite and Copper-Fin II pool heaters. This switch works with these models: CS475-1350, CS1540-2620, CS495-745, CB/CW/CS 985, CB/CW/CS 1255, CB/CW/CS 1435, CB/CW/CS 1795, CB/CW/CS 2065, 991, 1801, 1261, 2071, 1441, ER151-401, CP990-2070, 300, Copper-Fin II 300-750, 400, 500, 650, 750, ER152-252.








