Small gadgets can solve big problems, money for you. Therefore you can consider our conical exhaust valve filter. Constructed from cotton material, convenient to use and reliable. Widely used in bathroom ventilation valves. Features -Color:White -Material:Cotton -Size:18.00X12.50X0.80cm/7.07X4.91X0.31in - Conical exhaust valve filter has wide range of application, suitable for ventilation valves. - The exhaust valve filter has a reasonable shape and size design, simple operation method, and saves time and effort. - Conical filters for exhaust valve/disc valve ventilation, bathroom or toilet ventilation systems. - Replacement filter ensures nice protection for your fans, is portable and disposable. - Adhesive conical filter with standard size for easy installation. Perfect fit of filter lint. Package list: 10 x Exhaust Filters