54 mm Bottomless Portafilter Set, Black Rosewood B Upgrade extraction control and consistency with a precisioncrafted 54 mm bottomless portafilter set. Designed by a familyowned business with attention to detail, this set gives clear visual feedback during shots and components sized for reliable results. Key benefits Visual extraction feedback: The bottomless portafilter exposes the espresso flow so you can see channeling and adjust tamp, dose, and grind in real time. Improved distribution and consistency: Includes an 18 g filter basket and a 53.35 mm espresso puck screen that is 0.9 mm thick and 150 micron ultra thin to promote even water flow across the coffee bed. Durable construction: Made from foodgrade 304 stainless steel for corrosion resistance, durability, and easy cleaning. Precise fit and feel: 54 mm diameter with Black Rosewood B handle for a secure grip and professional handling. Broad compatibility: Fits espresso machines that accept a 54 mm portafilter, making it a versatile addition to home and small commercial setups. What is included 54 mm bottomless portafilter (Black Rosewood B handle) 18 g filter basket 53.35 mm espresso puck screen, 0.9 mm, 150 micron ultra thin Use scenarios Home espresso practice: Diagnose extraction issues, refine tamping technique, and dial in grind size while watching flow patterns. Barista training: Teach channeling detection and shot adjustment through direct visual feedback during drills and demonstrations. Small cafe quality control: Use the puck screen and bottomless portafilter to standardize shots and troubleshoot inconsistent extractions during busy service. Specifications Portafilter size: 54 mm Handle style: Black Rosewood B Filter basket: 18 g Puck screen: 53.35 mm, 0.9 mm thick, 150 micron Material: Foodgrade 304 stainless steel This set is a practical upgrade for anyone seeking clearer insight into extraction and a robust toolset for more consistent espresso shots.