Comparison : Item # DHP-04-90010572, Model "DHP" High Pressure Series Hospital Grade Disk Silencers
Item # DHP-05-90010573, Model "DHP" High Pressure Series Hospital Grade Disk Silencers
Item # DHP-06-90010574, Model "DHP" High Pressure Series Hospital Grade Disk Silencers
Item # DHP-08-90010575, Model "DHP" High Pressure Series Hospital Grade Disk Silencers
Item # DHP-10-90010576, Model "DHP" High Pressure Series Hospital Grade Disk Silencers