Keep your PETLIBRO cat water fountain running clean and fresh with this 8-pack replacement filter set! These filters are specifically designed for the PLWF002 model and come with matching pre-filter sponges for complete maintenance. The multi-layer filtration system does an amazing job removing hair, dirt, and impurities while keeping the water tasting fresh for your furry friends. Each pack gives you about 2-4 weeks of filtration, so this 8-pack set covers you for a solid 4 months of clean water. Before using, just remember to soak each filter for 5 minutes and rinse thoroughly for about 30 seconds to activate the filtration properties. Regular filter changes make a huge difference in maintaining water quality and extending your fountain's pump life. Seriously, if you want to ensure your cats always have access to clean, appealing water, staying on top of filter changes is crucial. The quality matches the original filters perfectly, ensuring optimal performance from your fountain. Having multiple filters on hand means you never have to worry about running out or delaying replacements. Whether you have one cat or multiple pets drinking from the fountain, these replacement filters help maintain that fresh, flowing water that encourages proper hydration and keeps your pets healthy and happy.