Used in the following models: CW 985, CB 985, CW 475, CB 475, CW 570, CB 570, CW 665, CB 665, CW 760, CB 760, CW 855, CB 855, CW 940, CB 940, CW 1120, CB 1120, CW 1210, CB 1210, CW 1350, CB 1350, CW 1540, CB 1540, CW 1700, CB 1700, CW 2000, CB 2000, CW 2310, CB 2310, CW 2620, CB 2620, CW 3080, CB 3080, CW 1255, CB 1255, CW 1435, CB 1435, CW 1795, CB 1795, CW 2065, CB 2065, WH 55, WB 51, WH 85, WB 81, WH 110, WB 106, WH 155, WB 151, WH 199, WB 211, WH 285, WH 399, CB 45, CB 75, CB 90, CB 135, CB 180, CB 215, CB 260, EP 150, EP 200, EP 250, EP 300, KB 400, KB 501, KB 601, KB 701, KB 801, KB 80, KB 105, KB 150, KB 210, KB 285, KB 399, KB 500, KB 600, KB 700, KB 800, WB 50, WB 80, WB 105, WB 150, WB 210, CW 90, CW 135, CW 180, CW 199, CW 225, CW 270, KB 81, KB 211, KB 106, KB 286, KB 151, CB 315, CW 315, CB 360, CW 360, CB 399, CW 399, CB 500, CW 500, CB 497, CW 497, CB 647, CW 647, CB 747, CW 747, CB 987, CW 987, CB 1257, CW 1257, CB 1437, CW 1437, CB 1797, CW 1797, CB 2067, CW 2067, PB 502, PF 502, PB 752, PF 752, PB 1002, PF 1002, PB 1302, PF 1302, PB 1501, PF 1501, PB 1701, PF 1701, PB 2001, PF 2001, RB 45, RB 75, RB 90, RW 90, RB 135, RW 135, RB 180, RW 180, RB 225, RW 225, RB 270, RW 270, RB 315, RW 315, RB 360, RW 360, IB 1500, IW 1500, IB 1700, IW 1700, IB 2000, IW 2000, RB 399, RW 399, RB 500, RW 500, CH 402, 402, CH 502, 502, CH 652, 652, CH 752, 752, CH 991, 991, CH 1261, 1261, CH 1441, 1441, CH 1801, 1801, CH 2071, 2071, CH 992, 992, CH 1262, 1262, CH 1442, 1442, CH 1802, 1802, CH 2072, 2072, PB 501, PF 501, PB 751, PF 751, PB 1001, PF 1001, PB 1300, PF 1300, PB 250, PF 250, PB 500, PF 500, PB 750, PF 750, PB 1000, PF 1000, PB 1500, PF 1500, PB 1700, PF 1700, PB 2000, PF 2000, Lochinvar Parts, Hydronic Heater Parts, Lochinvar, Lochinvar, Lochinvar, Knight, Floor Standing KB, Wall Mount WB & WH