Perfect Replacement FG701S Bathroom Exhaust Upgrade Grille Cover Is To Fit Small, Medium And Large Size Ceiling Vents,Designed Specifically For Broan and NuTone Ventilation Fans Simple Design FG701S Bathroom Exhaust Fan Cover With Bright White Appearance And Simple Structural Design, It Matches The Ceiling Perfectly And Can Easily Make Your Bathroom Fan Look Brand New Easy To Install Ventilation Fan Grille Cover With Three Different Specifications of Springs,Each With Two Springs.Please Measure The Fan Housing, Insert The Matching Springs And Push The Grille Cover Into Place Product Dimensions Grille Cover: 13.25" Width,13.25" Length,1.3" Height Small Springs: 4-3/8" Width, 3-1/2" Height Medium Springs: 7-1/4" Width, 1" Height Lager Springs: 7-1/2" Width, 4-3/4" Height Better ventilation Upgraded Bathroom Exhaust Fan Grille Cover Is Made Of High Quality ABS Plastic,Which Is Durable And Moisture-resistant.Improve The Ventilation of The Bathroom And Keep It Away From Dampness And Stickiness FG701S Bathroom Vent Fan Grille Cover with Springs Compatible with Bro-an and NuT-one Small/Medium/Large Size Vent fans,Bathroom Ceiling Square Fan Cover Replacement (White) 13.25" x 13.25" x 1.3"