JUKO-LF-AT ¾" 8170238 Fluxo: 2,3m³/hr Largura: 180mm Time-controlled automatic backwash: filter screen surface is cleaned three times during each backwash Pre-selectable interval: 1 day, 1 week, 1 month, 2 months Buffer battery ensures the backwash is completed even in case of power failure test unit for the buffer battery Plug-in power supply