A washer door gasket boot seal diaphragm creates a seal between the washer tub and the washer door, closing the air gap and ensuring leak-free watertight operation. When this part fails or begins to fail, the washer may leak, become noisy, or the washer door may fail to close or fail to remain closed. Made of high-quality rubber to ensure performance that is comparable or superior to the original part that came with your washer. Always take appropriate safety precautions when performing troubleshooting or repairs.