The sump check valve (DD66-00045A) is designed for Samsung dishwashers, specifically within the DMT, DW80F, and DW80K series. It prevents dirty water from re-entering your appliance after being pumped out, contributing to efficient cleaning. If your dishwasher isn't cleaning properly, this part may need replacing. The valve is an original equipment manufacturer component, ensuring compatibility and reliability. Installation requires the beveled side facing inward. Confirm your model number for compatibility before ordering.