1、COMPATIBILITY: This 3 ear handle 51mm is suitable for Donlim 6001, 5403, KF5400, for Petrus 3606, 3690, 3366, ( PE3320 is not applicable ) for Yanxuan coffee maker, ( for Donlim KF600 KF6001 does not apply ), for Maxim MKA71, DERLLA, KF500S, KF5002, KF7001, KF8001, CM4621, CM4218, CM4219, CM4008D, for Severin, for DERLLA, for GULISSO, for Stelang and most other three ear symmetrical 51MM commercial coffee machines. 2、EQUIPPED WITH A FILTER BASKET: The 3 ears portafilter comes with a 51mm stainless steel filter basket, which is compatible with the for Donlim 51mm filter basket. Users do not need to purchase an additional filter basket to get started. 3、EXTRACTION IMPROVEMENT: The 3 ears portafilter features a bottomless design that allows the user to better observe the details of the column, flow rate, color, and column streaks during the coffee extraction process. This helps to detect pre extraction flaws and errors, and to better judge the homogeneity of the extraction, thus improving the taste and consistency of the coffee. 4、MATERIAL: 3 ears portafilter is made of stainless steel, which is environmentally friendly, more hygienic and safer. Stainless steel has the characteristics of anti oxidation, not easy to corrode and durable, which can be used for a long time. 5、DETACHABLE AND EASY TO CLEAN: 3 ears portafilter has a detachable design for quick and easy removal and cleaning. Users can easily remove the filter basket for cleaning, cleaning without dead angle, ensuring hygiene and safety. Item Type: 3 Ears Portafilter Material: Solid Wood, Stainless Steel Product Size: Approx. 51x230mm / 2.0x9.1in Applicable Models: For Donlim 6001, 5403, KF5400, For Petrus 3606, 3690, 3366, ( PE3320 Is Not Applicable ), For Yanxuan Coffee Maker, ( For Donlim KF600 KF6001 Does Not Apply ), For Maxim MKA71, DERLLA, KF500S, KF5002, KF7001, KF8001, CM4621, CM4218, CM4219, CM4008D, For Severin, For DERLLA, For GULISSO, For Stelang 1 x 3 Ears Portafilter