Dimensions: Ø 11 cm x 8 cm. Automatically filters impurities in the water. The filter has 90 discs and an area of 4,000 square centimeters, making it one of the most efficient aerated vortex filter systems. High quality replacement filter elements suitable for spas and spas. Durable and practical, the center rod and tips are glued together to ensure a better seal of the tips. The filter cartridge is installed in the filter pump and catches dust as it passes through the system. Prevent dust from entering the pump and heater and extend the service life.