Bellows Upgrade for Rancilio Rocky For Lower Retention Color:Black - Single Dose Bundle You must use the same

You must use the same email account as the one you bought the Alpha basket with

Breville Barista Express Impress (BES876)

or in any way officially connected with Zerno

0g retention on each grind*

Bellows Upgrade for Rancilio Rocky For Lower Retention Color:Black - Single Dose Bundle You must use the sameAchieve an even lower retention on every grind with your Rancilio Rocky with this 3D printed flexible bellows, up to 0. 0g* (+ 0. 5g). It fits in between the stock hopper and stock lid and transforms it into a blower, enabling you to push all of those lingering grounds out. [Design Features] Simplicity and maximum effectiveness are my design goals, and both are carefully infused in our bellows' design. The bellows complements the grinder's original