Nutone Broan Replacement Vent Fan Blade # 99020271,Lumtopia,99020271" /> 5mm bore, 5-1/4 inch x 1-1/8 inch Contains 12 blades Replaces 99110655. Fits: 670-g, 670-h, 670-j Nutone 99020292 / Broan Blower Wheel - 670 Ceiling/Wall Fan G,H,J (Replaces 99110655) Part #