Complete Your Set-Up with the ECM Round Knock Box
Made out of brushed stainless steel, ECM's round knock box features a sound absorbing knock bar to cut down on noise as you knock out pucks from your portafilter. The knock box rests on a se...
Reviews
4.7
62 ratings
5
4
3
2
1
Do not recommend,from a coffee snob
Do not recommend, I have been using a Rocket Espresso and a Breville knock units and both are better constructed and aesthetically more pleasing. A hard pass!!!
C
Craig · February 23, 2026
ECM Round Knock Box
Solid, sturdy, quiet. Excellent.
M
Martin · March 9, 2026
Solid accessory
This high quality knock box pairs perfectly with the Sync. 2. It is very durable and works as it should.
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