This is a new Broan/ Nutone OEM Bath Bathroom Ceiling Fan Cover Part # 1100788 or 97011723
Plastic White Color
The size is 9 1/2" and 9"
Fits 663-G, 663-H, 663-J, 670-G, 670-H, 670-J, 671-G, 671-H, 671-J,
688-G, 688-H, 688-J, 688-K, 689-G, 689-H, 689-J, 689-K Broan/ Nutone models