[Compatible with multiple models]Compatible with for our 108oz/3.2L and 67oz/2L Stainless Steel Cat Water Fountain(More compatible models: PLWF003)[Replace Regularly]Pet water fountain need to replace the carbon filter every 4 weeks.(The hot weather breeds mosquitoes, please replace the carbon filter once 2 weeks), and replace the foam filter every two months to keep the water fresh.[Quantity specification]Set of 8 filters and 8 sponges compatible, easy replacement, bringing more protection to your pet.[Three-layer filtration]First Filter,Block Hair and Debris,Middle Filter,Remove Residual Heavy Metals,Third Filter,Healthier, High-quality Flowing Water,Allow pets to drink clean, fresh water throughout the day.[Matters needing attention]Soak the lter in a clean bowl for 5 minutes Notes, The lter must be fully soaked before the fountain is turned on; Otherwise, the water may not diuse through the lter and cause overow,Do not soak the lter in the fountain tank to avoid dust on the surface.Material:spongecolour:white + blackPackage Contents:8 * filter elements8 * filter spongesOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 584 hours Hope you have a pleasant shopping experience!