This ABS louvered air outlet filter is good for enhancing your home's ventilation system. Its square design and stylish appearance make it a great addition to any room. The filter helps to maintain optimal air quality by preventing dust and debris from entering your living spaces, ensuring a healthier environment for you and your family. Features -Color:White -Material:ABS -Size:18.00X18.00X4.50cm/7.07X7.07X1.77in -High efficiency dust capture: the abs filter effectively captures dust and debris, promoting a cleaner indoor environment -Multifunctional use: suitable for use as a square inlet, exhaust outlet, and air diffuser, meeting diverse ventilation requirements -Resistant design: the sealed construction prevents fly from entering your home -Convenient cleaning: the removable design simplifies cleaning and maintenance, keeping the filter in optimal condition - durability: constructed from durable materials, this product is durable and reliable, offering a Package list: 1set Exhaust Fan Cover (4 screws, 4 bolts )