Group Gaskets

Group gaskets also known as group seals for espresso machines. The seal sits inside the group head. Placed on the outer diameter of the shower screen.

When the Portafilter is placed in the group head it twists and raises. Once raised, the lip of the filter basket meets the group gasket. This creates an air tight seal.

The group is run to get water through the ground coffee. This is in the filter basket. The seal ensures all water heads for the ground coffee beans.

If the seal has failed this is no longer the case. Consequently water escapes over the side of the portafilter.  Resulting in less water  pushed through the coffee at the correct pressure.

First of all each espresso coffee machine  uses a unique group seal. A group seal is usually defined by manufacture. Then model and last of all dimensions.

Over-sized group seals fit older espresso machines. More often  manufactured before 1992.

When fitting a group seal the flat side always faces downwards. Old unchanged seals adhere to group heads. There's no magic solution for removing a stuck seal.

Change the seal every 3 - 6 months for best practice. Group gaskets on machines in busy coffee shops should be changed every month. This should be done by the Barista.

Products: 112 of 35
SKU Product name   Price  
237 ASTORIA, CMA, COSTA, ASTRA GROUP SEAL GASKET GENUINE PART 8MM
  • £4.27
  • including VAT

245 HD0245 AZKOYEN 8MM GROUP SEAL GENUINE PART
  • £2.53
  • including VAT

HD0249 BEZZERA O'RING GROUP SEAL - CLICK PICTURE FOR MACHINE FITMENT
  • £2.39
  • including VAT

HD0250 BEZZERA SERIES 1 GROUP SEAL GASKET OVER-SIZE OEM PART, FITS SOME B2000 MACHINES
  • £2.40
  • including VAT

257 HD0257 BRASILIA SERIES 1 GROUP SEAL 6MM SQUARE CUT OEM PART
  • £2.40
  • including VAT

HD0261 HD0261 BRASILIA SERIES 2 MYTHOS, ROMA, AMERICA, CENTURY GROUP SEAL GASKET OEM PART
  • £3.48
  • including VAT

HD0264 BRASILIA GRADISCA AND EXCELSIOR GROUP SEAL GASKET OEM PART
  • £2.39
  • including VAT

268 CARIMALI GROUP SEAL GASKET OEM PART
  • £3.36
  • including VAT

271 HD0271 CIMBALI GROUP SEAL 9MM GENUINE PART
  • £3.74
  • including VAT

276 CONTI GROUP SEAL 8MM GENUINE PART
  • £5.40
  • including VAT

283 HD0283 ELEKTRA COMMERCIAL GRP SEAL OEM PART
  • £2.40
  • including VAT

HD0329B STAFCO AND EXPOBAR GROUP SEAL - GENUINE PART
  • £3.60
  • including VAT

Products: 112 of 35