JUKO-LF-AT 1¼" 8170240 Fluxo: 5,8m³/hr Largura: 230mm 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