PETKIT Upgraded Filter Units 3.0 for PETKIT Pet Water Fountains EVERSWEET 2S/3/3 Pro, EVERSWEET Solo/Solo SE Replacement Filters (5pcs)\n\n-- PETKIT FILTER 3.0: PETKIT Filter Unit 3.0 is applicable for PETKIT EVERSWEET 2S, EVERSWEET 3, EVERSWEET 3 Pro, EVERSWEET 3 Pro UVC, EVERSWEET Solo 2 and Solo SE, and PURE DRINK cat dog water fountain\n-- MULTI-LAYER FILTRATION SYSTEM: PETKIT filter has 4 layer filtration system, high density cotton non-woven fabric layer fliter hairs and residue; Activated carbon particles can remove chlorine and odor; Ion exchange resin, can filter heavy metals and improve the taste; PP grid can stop hair and large impurities, keep water clean, healthy and tasty for your pet\n-- REPLACEMENT CYCLE: Replace every 60 days in Smart Mode and 30 days in Normal Mode.(The actual replacing time depends on filter status,and the indicator will remind you when the filter need to be replaced.) Please reset the device after replacing filter\n-- Attention: Please soak the ne.