[Compatibility] This two ears portafilter 51mm fits for ECP3420, EC155, BCO430, EC260, and other compatible 2 ears coffee machines. [Filter Basket Included] Stainless steel 51mm filter basket included, compatible with standard 51mm filter baskets. [Extraction Improvement] The bottomless design allows observation of the espresso flow, including stream consistency, color, and extraction rate, helping identify channeling or defects, improving extraction uniformity, and enhancing espresso quality. [304 Food-Grade Stainless Steel] The bottomless portafilter is made of food-grade stainless steel, non-toxic and food-safe, offering excellent hygiene with resistance to oxidation, corrosion, and rust for long-lasting durability. [Removable & Easy to Clean] The detachable design enables quick and convenient disassembly, ensuring easy cleaning without hard-to-reach areas. Compatible with: 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 Color: Black + Silver Package Contents: 1 x 51mm Portafilter Note: Light and display differences may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3cm.