Used in the following models: SB 1000, SB 1300, SB 1500, FB 1500, FB 2000, FB 2500, FB 3000, FB 3500, AW 1000, AW 1300, AW 1500, XP 1015, XP 1320, XP 1520, CB 45, CB 75, CB 90, CB 135, CB 180, CB 215, CB 260, CP 180, CP 199, CP 270, CP 360, AW 150, AW 199, AW 285, AW 399, AW 500, AW 600, AW 700, AW 800, CW 90, CW 135, CW 180, CW 199, CW 225, CW 270, 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, IB 1500, IW 1500, IB 1700, IW 1700, IB 2000, IW 2000, 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 1500, PF 1500, PB 1700, PF 1700, PB 2000, PF 2000, Lochinvar Parts, Pool Heater Parts