The SunSun Aquarium External Filter HW-504B A can be easily connected to aquariums with a water volume of up to 400 liters. So the operation of large-sized aquariums becomes an simple excercise. The pump capacity is 1000 liters per hour. The aquarium external filter provides for a high flow rate, however it operates quietly. The rubber stands provide for a optimal vibration reduction.

The highlight of HW-504B is the integrated UVC-unit.

Normally, the UVC-clarifier provides for clear aquarium water within a short period of time. You achieve the best results with this combination of an UVC-clarifier an a biological aquarium filter. UVC-pond clarifiers irradiate the water in a flow-through reactor with UV rays.The UV-C radiation destroys the swimmig algae. The algae agglutinate to large particles and ca be easily removed by means of mechanical filtering. Our UVC clarifiers modify the tertiary and the quaternary structure of the algae proteins by means of UV-radiation. This means the destructions of the algae which can be removed from the water by aquarium filters.

Ocasionally you can hear the argument a UVC-clarifier is unnatural.

In fact a UVC-clarifier helps balancing the natural biotope of the aquarium environment.

Dimensions 185 x 185 x 365 mm Weight in kg 4.5 Protection category IP 44 Input voltage 230VAC ~50Hz Power 15 W Hose connection Ø / Inch 12mm 16mm Hose diameter 16/21 | 12/16 cable length 1.3 m Volume / Capacity 5l Size of the Filter Baskets 150 x 150 x 55 mm Filter Media Optional $39 Aquarium Size 400 Liter max. Delivery rate 1000 l/h Delivery Head 1.3 m