Usage Tips:[Compatibility] This two ears portafilter 51mm fits for ECP3420/EC155/BCO430/EC260 etc 2 ears coffee machine. [Filter Basket Included]Stainless steel 51mm filter basket included and compatible with 's 51mm filter basket [Extraction Improvement]the bottomless design can help observed the column, rate, color, column , etc., find the defects and errors extraction, and better the uniformity of extraction, thereby making it more delicious and more Espresso [304 Food stainless steel]The Bottomless Portafilter is made of food- Stainless Steel, -friendly and non-toxic, more sanitary and , has the characteristics of oxidation resistance, corrosion resistance, rust resistance and durability [Removable & Easy to Clean]- The detachable design is convenient and quick to disassemble, easy to use, and easy to clean without dead corners. Compatible with: for BCO420, BCO430, BCO432, EC152, EC155, EC155M, EC156B, ECO310, EC0311, EC330, EC330S, EC702, EC200, EC221, EC235, EC260, ECP3420, ECP3630, ECP3220, ECP3220W, ECP3220R, ECP3120 ECP33.21 ECP35.31, ECP36.31 Material:ABS+stainless steel colour:Black + Silver Package Contents: 1 x 51mm portafilter Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.