Our supplier of return filters is MP Filtri S.p.A. MP Filtri return filters are available in 4 styles: MPF semi-immersed filters for mounting to the oil tank with external/internal filter element MPT semi-immersed filters for mounting to the oil tank with external/internal filter element MPH/MPI semi-immersed filters for mounting to the oil tank with external/internal filter element FRI semi-immersed filters for mounting to the oil tank or in-line, available in the single or duplex versions, with external/internal filter element The FRI version can also be used as an in-line filter for forced lubrication or off-line systems.   MP Filtri MPF Data sheet: MPF MPF Tank mounted return filter, with oil flow external to internal filtering element. Working pressure 8 bar (116 psi), flow rates up to 750 l/min (198 gpm), threaded connections from 1/2” to 2” BSP/NPT/SAE and flanged connections up to 2” SAE 3000 PSI.   MP Filtri MPT Data sheet: MPT Tank mounted return filter with oil flow external to internal filtering element. Working pressure 8 bar (116 psi), flow rates up to 300 l/min (80 gpm), threaded connections from 3/8” to 1 1/4” BSP/NPT/SAE.   MP Filtri MPH Data sheet: MPH Tank mounted return filter with oil flow internal to external filtering element. Working pressure 10 bar (145 psi), flow rates up to 3000 l/min (792 gpm), threaded connections from 3/4” to 1 1/2” BSP/NPT/SAE and flanged connections up to 4″ SAE 3000 PSI and DN 100 PN 10/16 UNI 2223.   MP Filtri MPI Data sheet: MPI Tank mounted return filter with oil flow internal to external filtering element. Working pressure 10 bar (145 psi), flow rates up to 3000 l/min (792 gpm).   MP Filtri FRI Data sheet: FRI FRI In-line or tank mounted return filter with oil flow external to internal filtering element. Working pressure 20 bar (290 psi), flow rates up to 1500 l/min (397 gpm), threaded connections from 1/2” to 2 1/2” BSP/NPT/SAE and flanged connections up to 3 1/2” SAE 3000 PSI.   MP Filtri RF2 Data sheet: RF2 Semi-submerged return filter, flow rates up to 350 l/min (92 gpm), threaded connection up to 1 1/2” BSP/NPT/SAE and flanged connections up to 1 1/2” SAE 3000 PSI.   MP Filtri MFB Data sheet: MFB MFB – Bowl assembly flow rate up to 500 l/min (132 gpm).   MP Filtri accessories Data sheet: Accessories for return filters Accessories MPF-MPT-MPH 104-110-114-120 and DPT – DIPSTICK....