COMPATIBLE: The filters (8.9 x 7.9 cm) are ideally designed for operation with the Navaris water cooler and have an approximate duration of one month (depending on the water). The triple set gives you a refill for a long time. FILTERED WATER: Your pet’s drink stays clean and fresh thanks to the replacement filters. This encourages her to drink more, and clear, healthier water, which reduces the risk of infections. EASY TO INSTALL: Remove the container bowl above the fountain, turn it upside down, remove the old used filter and insert the new one. SOLID: The activated carbon filter is effective against dirt, odors and the hair of your dog or cat in particular. The plastic frame keeps it protected. ADJUSTABLE FLOW: Thanks to the pump, the water flow is adjustable and the dose is therefore easily adaptable according to the needs of your animal.