... ,with prefilter,2year warranty22108401Active Filter 8"(200X1000mm),1800m3/hr,with prefilter,2year warranty22110201Active Filter 10"(250X500mm),900m3/hr,with prefilter ... ,with prefilter,2year warranty22110321Active Filter 10"(250X800mm),1800m3/hr,with prefilter,2year warranty22110401Active Filter 10"(250X1000mm), 2350m3/hr,with prefilter ... /hr,with prefilter,2year warranty carbon filter, 4,5,6,8,10