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 intot he three way solenoid valve as well as descaling the OPV (over pressure valve) on machines that have this.
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.