Veken 4 Pack Replacement Filters & 4 Pack Replacement Pre-filter Sponges for Pet

New open box. Box has some corner wear. Filters for 84oz/2.5L Veken Pet Fountain Value Pack of 4 Filters & 2 Sponges. Individually packaged and sealed to maintain high quality. The filter removes hair | residue | odors | bad taste | chlorine | heavy metals during the purification process, ensuring your cat or dog is drinking healthy and hygienic water. Filters help extend the life of your fountain and pump. It is recommended to flush the filter with water every time you change the water, and they should be replaced every 2 to 4 weeks.