Search Duplomatic description in Filters Mounting Style -- flange inline stackable Max Operating Pressure -- 3 7 10 210 315 320 420 Function -- suction filter pressure filter return filter Reset FSISuction filter for submerged mounting FSTSuction filter for flange mounting FRTReturn filter for flange mounting on the tank FRITank top return line filter with immersed ports FRCReturn line filter for tank top or in-line mounting FPHPressure filter for in-line mounting FPMMedium pressure filter for in-line mounting FPHMStackable pressure filter