Delonghi Code: 5332149100 red Delonghi Code: 5313238581 black Spare O-Ring for the Delonghi brew unit (infuser) Delonghi sealing ring O-ring brewing group/brewing unit. You usually need 2x 5313238581 sealing rings to maintain the brewing unit. need 1x 5332149100 sealing rings to maintain the infuser. Dimensions: CUSTOM. 35 mm ID, 4.3 mm C/S Suitable for: EAM, ESAM, ECAM, ETAM models