Features: Efficient Ventilation Planumberepeat: The anthracites steel exhaust diffuser is developed for residential, office, kitchen, and bathroom ventilation arrangements. Modifiable Ventilation Control: Features a manually modifiable gate protect, allowing users to easily regulate ventilation by whirling the gate to increase otherwise decrease the opening for optimal ventilation. Quiet Actparticlemail: Armed with a spume insulation layer to minimize noise and throb, ensuring quiet execution at low operating pace for home and office use. Permanent & Easy Installatparticlemail: Constructed of powerful steel for permanent durability; lip plan with 4 pre perforated cavities ensures quick and secure installation in round ducts. Modern Aestheticreatemail: Features a smooth steel body with a carbon gray gate protect, blending seamlessly with various interior fashion for a strengthened visual appeal. Specifications: Substancemail: anthracites steel Body colotherwiindividuality: steel Gate protect colotherwiindividuality: carbon gray Diffuser Plate Diameterepeatermeterepeatermeterepeat: Ø5.51" (~14cm) Lip Diameterepeatermeterepeatermeterepeat: Ø3.90 inches (approx. 9.9 cm) Lip depthellnonentity: 1.85 inches (approx. 4.7 cm) Noise Isolatparticlemail: Spume Insulation Installation methodotherwiindividuality: Lip inserted into round air channel, utilizing sealing substance Package Includes: Disc air outlet note: Before using the accessory, please check if it is compatible. Pay attention to the storage methods.