SUGGESTED BRANDS FREUDENBERG, AAF, DONALDSON, ETC., SKU 503042 FILTER 60% / 63%, , ” ALTERNATIVE 1: FILTER DRIPAK 2000 24X24X27 ”E = 60% TO 9 POCKET BRAND: AAF AMERKLEEN, , ALTERNATIVE 2: FILTER COMPACT POCKET T60 1/1 VILEDON 595X595X650 MM., AVERAGE EFFICIENCY = 63% TO 8 POCKET, BRAND: FREUDENBERG, KKS ANSALDO: MBL13AT001G, POS .: 002 USE: SECONDARY AIR FILTER FOR GAS TURBINE U-3 (BAG FILTER) ”