*SPECIAL ORDER ITEM PLEASE ALLOW AT MINIMUM 6 WEEKS FOR DELIVERY Get better espresso shots with our bottomless portafilter. Made with walnut wood and resin, this portafilter lets you see your extraction in real time, helping you dial in your grind and technique for consistently great espresso. Walnut Wood & Resin Composite Handle: Food-grade imported resin seamlessly combined with walnut wood creates translucent amber aesthetics with moisture and crack resistance, while resin layers protect wood edges for long-lasting durability. Precision Laser Filter Technology: Ultra-fine laser drilling with hole distance uniformity <0.1mm ensures even powder distribution and eliminates channeling effects, while single-layer filter design enables direct oil extraction from coffee. Premium 304 Stainless Steel Construction: Food-grade stainless steel manufacturing provides corrosion resistance and odorless operation, maintaining like-new appearance through extended use with standard 58mm diameter compatibility. Bottomless Extraction Visibility: Transparent bottom design allows direct observation of water flow through coffee puck, enabling real-time monitoring of extraction quality and "tiger stripe" pattern assessment for optimal brewing control. Ergonomic Rounded Handle: Food-grade resin and walnut wood combination provides comfortable grip with seamless integration, featuring rounded edges that conform to hand contours for extended use without fatigue. Compatibility List 58mm Fits E61 Groupheads Italian Models: E61, Rocket, Rancilio, Bezzera, La Pavoni, ECM, Flair 58, Profitec, Faema, Nuova Simonelli, WPM, Slayer, Lelit, Casadio, Ascaso, Sanremo Serie One, Basilica, Gemilai, Victoria Arduino, Ladetina, etc... 58mm Fits La Marzocco Compatible with: All La Marzocco Machines 58mm Fits Gaggia Compatible with Gaggia Classic Pro, Gaggia Carezza, Gaggia Cubika Plus, Gran Gaggia Prestige, and Gran Gaggia Deluxe espresso machines 58mm Fits Nuova Simonelli: Compatible with Nuova Simonelli Appia, Aurelia, Oscar, Musica, Premier, Maxi, Mac 58mm Fits Breville / Sage - 2 Ears Specifically designed for Breville / Sage BES990, BES980, BES920 and BES900 espresso machines 58mm Fits Casabrew - 3 Ears Compatible with CASABREWS 5700Gense, 5700Pro, CM5700, Neutron Pro, Ultra and 4700Gense 58mm Fits WPM Welhome - 2 Ears Compatible with KD210S/KD210S2/KD230/KD270/KD310/KD320/KD330/KD410/KD510 58mm Fits Hibrew / Kitchenaid - 3 Ears Compatible with the universal 58mm 3 ears coffee machine brewing head on the market. 54mm Fits Breville / Sage - 3 Ears Compatible with Barista Express, Barista Pro, Barista Touch, Bambino, Bambino Plus, Infuser, Duo Temp Pro and more (BES840/BES870/BES875/BES878/BES880/BES500) 51mm Fits Delonghi - 2 Ears Compatible with De'Longhi ECP series (eg ECP3420), EC (eg EC155, EC221), ECO (eg ECO310) and other models such as BCO420, ECZ351. 51mm Fits Delonghi Dedica - 3 Ears Compatible with DeLonghi Dedica EC680/EC685/EC785/EC820/EC850/EC860 SMEG ECF01 51mm Fits Delonghi La Specialista 3 Ears Compatible with DeLonghi EC9335M/EC9155M/EC9355M/EC9665M *NOT COMPATIBLE FOR CASABREWS MACHINE*