Use with commercial espresso machines, or with semi commercial home machines provided with pressure relief 3-way solenoid valve on group head (Warning: attempting to backflush a machine without 3-way solenoid valve on the group head can cause serious damage to the unit). This universal disc fits on any 2-cup size filter basket and "plugs" the filter holes to allow thorough and effective backflushing. Use with a teaspoon of our "Clean Express" (see below) detergent for best results.
Made in USA. Each disc will last for hundreds of applications.