Universal Blind Portafilter Insert – 58mm – for backflushing. This blind filter basket/cup is used for backwashing or backflushing a grouphead and fits most portafilters that have 58mm inserted 58mm filter baskets. And, it can be used when descaling so descaling solution is backflushed into the three way solenoid valve as well as descaling the OPV (over pressure valve) on machines that have this.
Do NOT use this if your espresso machines does NOT have a grouphead solenoid valve. For example, lever espresso machines do not have solenoid valves. In these lever espresso machines, the screen needs to be removed for manual cleaning.
This item does fit the Ascaso Steel Pro series espresso machines, but it does not fit the Ascaso Dream, Basic, Arc, or Steel Uno Special Edition/Versatile models. Alternative for MC754-C.