Upgrade your espresso experience with the CASABREWS 51mm bottomless portafilter. Designed for CASABREWS CM5418, 5418 PRO, 5418Basic and 3700 Essential espresso machines, this professional-style accessory helps coffee lovers improve extraction visibility and create a more consistent espresso experience at home.The bottomless design allows you to observe the espresso flow directly, making it easier to identify extraction issues and fine-tune your grind size, coffee dose, and tamping technique. The included double shot filter basket and puck screen help promote more even water distribution and cleaner brewing results. Made with food-grade stainless steel and finished with a comfortable wooden handle, this espresso portafilter combines durability, control, and premium style. Perfect for home baristas looking to enhance their brewing skills and enjoy a more professional espresso setup. | Casabrews | | 51mm Bottomless Portafilter, Stainless Steel Espresso Filter Holder With Wooden Handle | Silver | Best Buy