Upgrade your cleaning routine with the BISSELL Clean Tank Cap designed specifically for the CrossWave Hard Floor Expert (model 1638380). This essential replacement part ensures a secure seal for your clean water tank, preventing leaks and maximizing efficiency. Made from durable materials, it’s built to withstand regular use while maintaining optimal performance. Easy to install, this cap helps you maintain the cleanliness of your floors with minimal hassle. Keep your CrossWave running smoothly and enjoy spotless surfaces with this reliable tank cap!