This Top Hat washer pilots into the valve outlet to ensure a proper fit.  This part number is for a seal that is green in color.  It it also available in white.  Part number ACM-028 is for the white top hat sealing washer. For those that do not wish to have a washer that pilots into the valve outlet, we also offer other sealing washers. The 565 medical sealing washer is our most popular .  Our 565 medical washer is available in green and gray and fits inside all of our valve seals that are equipped to receive a washer.  This washer is available in either green or gray colors.  Gray is part number ACM-002.  Green is part number ACM-017.  We also have a Posi-Seal washer that was developed and patentened to deliver superior sealing performance with lower torque required by the patient.  This allows patients with weaker hand strength to accomplish a leak tight seal when changing cylinders.  This washer also comes in gray and green colors.  The part number for the gray posi-seal washer is ACM-150 and the part number for the green posi-seal washer is ACM-193.  We also carry the brass and viton sealing washer.  That part number is ACM-291.

Quantity per bag for part number ACM-030 is 500.