panel prefilter filter 1.cheap and thin depth 2.low resistance large air flow 3.usable for primary filtration of aircondition panel prefilter filterStandard specifications ModelOverall DimensionRated air flowInitial resistanceEfficiencyModel of filter mediaCGI-8J295×295×1012,×12,×1/2,800(m3/h)≤25 (Pa)40% GIHTC-W65-IHTC-W68-2CGI-13J495×295×1020,×12,×1/2,1300(m3/h)CGI-22J495×495×1020,×20,×1/2,2200( ...