Perfect Match - Charcoal water fountain filters compatible with Aookupett and LEXVSS cat water dispensers, as well as other pet water fountains that use the same size. Great Package - Pack of 12, 16, or 8 cat water fountain filters for your pet water fountain. Dimensions: 4.4 x 1.69 x 0.35 inches (approximately 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. These filters help remove pet hair, heavy metals, and improve water taste. Frequency of Replacement - Replace carbon filters every 2 to 4 weeks to maintain water freshness, depending on the number and size of pets using the fountain. Recommendations - To minimize activated carbon dust from entering the water (not harmful to pets), soak the filter in water for 2 minutes and rinse thoroughly under running water before use. Improved Taste - Filters reduce chlorine taste and odor commonly found in tap water, making water more appealing to cats. Quantity: 12 Set / 16 Set / 8 Set. Color: As shown. Material: Non-woven fabric. Package Contents: 12 x Pet Water Fountain Filters, 12 x Blue Sponge Foam Filters, 12 x White Sponge Foam Filters; or 16 x Pet Water Fountain Filters, 16 x Blue Sponge Foam Filters, 16 x White Sponge Foam Filters; or 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 differences in display screens may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.