Perfect Match - Charcoal water fountain filters compatible with Aookupett, LEXVSS cat water dispensers, and other pet water fountains that use the same size. Great Package - Bulk pack of 8 cat water fountain filters for your pet water fountain. Dimensions: 4.4 x 1.69 x 0.35 inches (approx. 11.2 x 4.3 x 0.9 cm). Large packaging meets your replacement needs. Premium Quality - Each pet fountain filter is composed of activated carbon, ion exchange resin, and non-woven fabric. They help filter hair, heavy metals, and improve the taste of water. Frequency of Replacement - Replacement carbon filters should be changed approximately every 2 to 4 weeks to maintain water freshness, depending on the size and number of pets using the fountain. Recommendations - To reduce activated carbon dust from shedding into the water, please soak the filter in water for 2 minutes and rinse thoroughly under running water before use. Improved Taste - Filters reduce the taste and odor of chlorine found in tap water, which may make the water more appealing to cats. Quantity: 8 sets. Color: As shown. Material: Non-woven fabric. Package Contents: 8 x Pet Water Fountain Filters, 8 x Blue Sponge Foam Filters, 8 x White Sponge Foam Filters. Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the actual item. Measurement allowance is +/- 1-3 cm.