ECM E61 Flow Valve Device

The flow profiling is a game-changer for dialing in lighter roasts—I can finally stretch out pre-infusion exactly how I want. Machining feels precise and the adjustment knob moves smooth without any play.

Installed this on my machine and immediately noticed the difference in control during pre-infusion. The brass construction feels solid and precise. My shots have been more consistent than ever.

The flow adjustment is buttery smooth and gives me precise control over pre-infusion that I never had before. Took a few shots to get the hang of it, but now my extractions are noticeably more balanced and sweeter.