Inner bowl to MAL300L ( bowl + O-ring) Bowl to MAR401 with semi auto drain and O-ring Bowl to MAL401 with O-ring MAR500-20A discontinued, possible alternative MAR500-25A (last unit available ever);; MAR500-25A PS-MCDA-20 MCMB-11-40-100-A MCGB-03-25-10 MCMI-11-25-40 SQZ2-7/71 MCQA-11-50-125 CA-MCQA-50 PIN-MCQA-50-Y-P PIN-MCQA-50-CB-P Y-MCQA-50. CB-MCQA-50.