Features: 1Compatibility: This 3 ears portafilter 51mm suitable for Donlim 6001 5403 KF5400 for Petrus 3606 3690 3366 ( Not for PE3320 and not for Donlim KF 600 KF6001) for Maxims MKA71 KF500S KF5002 KF7001 KF8001 CM4621 CM4218 CM4219 CM4008D for SEVERIN for DERLLA for GULISSO for Stelang and most other 3 ears 51MM commercial machine coffee maker. 2Filter Basket Included: Stainless steel 51mm filter basket compatible with for Donlim 51mm filter basket. 3Extraction Improvement: Bottomless design helps to observe the flow column flow rate color column streaks etc. to detect defects and errors before extraction and to better judge the homogeneity of the extraction which leads to a more flavorful and consistent coffee extraction. 4Prime Material: Bottomless powder bowl is made of stainless steel environmental friendly and healthy more hygienic and safer with antioxidant rust resistant and durable features. 5Detachable and Easy to Clean: Detachable design easy to disassemble easy to use clean without dead corners. Specification: Item Type: Portafilter Weight: 330g / 11.64oz Material: Solid Wood Stainless SteelProduct Size: Approx. 23x5.1cm / 9.1x2.0inApplicable Models: For Donlim 6001 5403 KF5400 for Petrus 3606 3690 3366 (not for PE3320 not for Donlim KF 600 KF6001) for Maxims MKA71 KF500S KF5002 KF7001 KF8001 CM4621 CM4218 CM4219 CM4008D for SEVERIN for DERLLA for GULISSO for Stelang Package List: 1 xPortafilter