UL approved for use with the following current and legacy models: NuTone 695, 763, 6950, 50NT, 684NT, 696N, 696N0, 763N, 763NC, 80NT, 80NTE, HD50LNT, HD50NT, HD80LNT, HD80NT.Broan 576, 670, 671, 674, 676, 678, 679, 680, 683, 684, 688, 689, 770, 771, 784, 6