I have a Eureka Atom w75 and was looking for a single dose hopper with bellow. This one works as described, fits under the cabinet, and is a silicone bellow, not plastic. I consistently put 20g of beans in and get 20g grounds out. The only downside is that it took about 4-5 weeks to arrive in the US as it ships from China. Just be patient as the product is worth it.