Comparison : Item # HV-UL896-100C, 1" Medical Vacuum Filter
Item # HV-UL896-125C, 1 1/4" Medical Vacuum Filter
Item # HV-UL896-150C, 1 1/2" Medical Vacuum Filter
Item # HV-UL850/1-200C, 2 " Medical Vacuum Filter
Item # HV-UL850/1-250C, 2 1/2" Medical Vacuum Filter