A Frigidaire dishwasher drain hose is usually around 5 feet long. It's important to make sure it's the right size for your dishwasher because if it's too short, the water won't be able to drain properly. If it's too long, it can get in the way and cause a mess. You can measure your current drain hose or check the manual for your specific Frigidaire model to make sure you get the right size.