Used in the following models: 501, 1801, 651, 2071, 751, 1441, 502, 652, 752, 992, 1262, 1442, CB 987, CW 987, Copper Fin 495-2067, Copper Fin 495-2067, CB 1257, CW 1257, CH 992, 992, Copper Fin II Parts, CH 992-2072, Copper Fin II 992-2072, Copper Fin II Parts, CH 1262, 1262, CH 1442, 1442, CH 401, 401, CH 501, 501, CH 651, 651, CH 751, 751, CH 402, 402, CH 502, 502, CH 652, 652, CH 752, 752, CH 1441, 1441, CH 1801, 1801, CH 2071, 2071, CB 986, CW 986, CB 1256, CW 1256, 991, 1261, Pool Heater Parts