NuTone S53740000 Heater and Ventilation Fan Lens
This is a Genuine NuTone replacement lens S5374000. This lens only fits the following NuTone/Broan Heater and ventilation fan models: 605P, 660, 660P, 660RP, 665, 665F, 665N, 665P, 665RF, 665RP, 665RSP, 665SP, 668, 668N, 668P, 668RP, VH668P. Dimensions (H by W by D): 5-1/4-Inch by 9-3/4-Inch by 1-3/4-Inch.