[PERFECT MATCH: Compatible with Cobectal stainless steel cat fountain with a capacity of 2.2 litres. Attention: Filters from other brands are not compatible with Cobectal cat fountains please purchase original filters from Cobectal brand "PREMIUM QUALITY FILTRATION: Each pet water fountain filter in our pack of 8 is composed of high-quality activated carbon ion exchange resin and non-woven fabric. This powerful combination effectively filters out hair heavy metals and other impurities while greatly improving the taste and freshness of the water in your cats fountain" CONVENIENT PACKAGE: With our great package deal you will receive 8 pack of pet fountain filter replacements and 8 pack of replacement sponge filters. Each filter is individually packaged making it easy to store and replace. The included Blue pre filter sponge replacement foam filter acts as an additional layer of protection for your pump ensuring better filtration and prolonging the life of your cat water fountain "ALL FOR YOUR PETS HEALTH: Every drop of water is filtered through multiple layers of filtration to remove impurities and provide oxygenated better tasting water." IMPORTANT RECOMMENDATIONS: We highly recommend soaking the filter in water for 2 minutes and rinsing it thoroughly under running water before use. This simple step helps prevent any activated carbon dust from shedding into the water and ensures the best possible filtration results for your cat water fountain]