A must have accessory to the Krystal Clear Cartridge Filter Pump, this filter cartridge is made with easy-to-clean Dacron paper for the ultimate filtration. For maximum efficiency, replace cartridges every two weeks.Give your four-legged friends a refreshing and safe haven right at home. This specially designed tubular pool allows them to have fun in the water while enjoying its benefits on hot summer days. Perfect for the summer season, it becomes their ideal playground where they can cool off and play freely. Ultra-durable and equipped with various practical accessories, it meets your pets’ needs for unforgettable moments of relaxation.