[12 PACKS IN ONE SET] You will receive 12 pieces of pet foam filters, suitable for 6-12 months of daily use and replacement. High quality and cost-effective. [COMPATIBILITY] Pet foam filter replacement is compatible with WF020TP fully transparent pet water fountain, with dimensions of 4.7 inch x 1.18 inch x 0.63 inch (12cm x 3cm x 1.6cm). [MULTIPLE FILTRATION] Features a high-density, high-content activated carbon filter with a triple filtration structure for effective multi-stage filtering. Helps increase water freshness, improve oxygen content, and provides pets with cleaner and healthier water. [KEEP YOUR PET HEALTHY] Replacement foam filter effectively reduces impurities, captures pet hair, chlorine, heavy metals, and odors, keeping your pet's water clean and fresh. Helps prolong the life of the water pump. [EASY TO USE] Water fountain is easy to disassemble for pump cleaning and foam filter replacement. It is recommended to change the filter every 2 to 4 weeks to maintain water quality and cleanliness. Material: Sponge Color: Black + White Package Contents: 12 x Pet Replacement Foam Filters Note: Light and display differences may cause slight color variations between the image and actual item. Measurement error is +/- 1-3cm.