Replace a broken filter or keep an extra on hand with this Estella Caffe single cup filter. Made of durable stainless steel, this part works with your portafilter (sold separately) to contain compressed coffee grounds underneath the group head of your machine when your baristas are ready to pull a shot of espresso. This single cup filter is ideal for pulling single shots and is made for use with Estella Caffe ECEM series espresso machines (sold separately).