Enhance the efficiency of your kitchen and bathroom exhaust systems with this stainless steel non-return valve. Its robust design ensures that it can withstand the rigors of daily use, while its sleek appearance complements any modern home. By preventing backflow, this valve helps to maintain a healthier and more comfortable living environment. Features -Color:Silver -Material:Stainless Steel -Size:14.50X14.50X4.50cm/5.70X5.70X1.77in -Size:10.00X10.00X4.50cm/3.93X3.93X1.77in -Versatile functionality: for use with dryers, extractors, range hoods, and other hvac applications, providing extensive functionality -Antibackflow mechanism: features an efficient antibackflow design to prevent the return of , ensuring a fresh and clean atmosphere -Easy to install: userfriendly installation process makes it suitable for both kitchen and bathroom range hoods, accessible for all users -Operation: designed to operate silently, eliminating noise interference and ensuring a quiet and comfortable living -Airflow: includes an adjustable valve to meet various airflow requirements, ensuring optimal performance and adaptability Package list: 4 pcs x 1pcs valve