The drain cover uses EPDM rubber, which is better than ordinary rubbertreated guards. The EPDM rubber material with excellent oil is resistant to aging, cold and high temperature. The operating temperature range is approximate 50C to +150C. The best choice for replacing dirty old sink flaps. The new 2022 sink flap is easy to open under the weight of the water. It is used to prevent food and water from ing upwards, providing a safe and comfortable environment. The noise reduction effect is also very good, which can reduce the operating noise of the garbage disposal by up to 70%. The removable collar sink flapper is very easy to install and without tools. It can bring you a more pleasant and relaxing kitchen experience. The replaceable waste disposal guard is compatible for InSinkErator Evolution series waste disposal machine design. 3 3/8 diameter and compatible for QCBAM parts. Please note that it is not compatible for Badger series. Please confirm dimensions before purchasing. Specification: Material: EPDM Colour: Black Size: 8.7*8.7*3.5cm Use: threepoint buckle of garbage disposal, metal drain (easy to fit) Package List: 1* Garbage Disposer Guard Note: Due to the lighting effects and shooting angles, there is a color difference in the product, please understand. Due to manual measurement, there is a tolerance in the product size. Garbage Disposal Guard,EPDM Rubber 3 3/8 Sink Baffle Disposer Drain Guard Collar Replacement Quiet Cover for InSinkErator Series QCB AM Sink Baffle Drain Cover