An official Oase UVC can be setup vertically or horizontally & offers 100% protection against eye damage. It is energy efficient
...The Filtoclear from Oase is a finest top quality product. It has a superior build quality to other pressure filters on the market & has one of the most effective 'easy-clean' interval cleaning methods we have ever used. When you want to clean the filter sponges there is no need to get inside the filter. Simply switch off the pump, then pump up & down on the cleaning handle to squeeze dirt & debris out of the filter sponges. Once the sponges have had a good squeeze switch the water diverter to 'waste', switch the pump back on & the dirty water will leave via the waste outlet. Simply repeat the process until the water runs clear.