With this Mahlkonig EK43 Single Dose Blow-Out Hopper Bellow, grind 20g and expect all 20g out. Get class leading low retention for your grinder. For subsequent grinds you can expect less than 0.1g difference between grinds. With a clean and professional design, it blends well with your machine design without looking out of place.
The precision design ensures there is no free space for grinds to collect and get stale. Together with the bellow, it helps to clear the chute of even more remainder grinds giving you very low retention. It also helps clear stale grinds left from day before so your shots are much more consistent.
This is a plug and play replacement for the original hopper. Just install it and you are ready for near zero retention single dosing.