Stainless Steel Blind Filter 58mm
The blind filter is used for backflushing and cleaning your semi automatic espresso machine grouphead, shower screen and the relief valve. It only fit standard size 58 mm commercial portafilter handle including E61.
When performing back flush cleaning, remove the regular (single or double) coffee basket out of your portafilter handle and insert the blind filter instead. Use about 1/2 packet Urnex cafiza powder and follow back flush instructions.
Also see Rubber Blind Filter - the easier, more economical way to backflush.
*Not for use with basic home coffee machines that do not have a 3 way relief valve. Check your equipment user manual to confirm.