About This Precision Fit – 51mm Diameter: Designed for 51mm baskets, this 3-ear bottomless portafilter is perfectly compatible with CASABREWS CM5418 and 3700 Essential espresso machines. Provides a snug and secure fit for consistent brewing Complete Barista Set Included: Comes with a double shot filter basket and a 51mm espresso puck screen. The puck screen keeps the brew head cleaner and helps ensure a more even extraction every time Premium Build & Comfortable Grip: Made of food-grade stainless steel with a hand-polished finish. The solid wood handle offers an ergonomic grip, ensuring comfort, control, and a high-end feel with every use Improve Your Espresso Technique: The bottomless design lets you observe the extraction process directly, helping you identify and correct issues like channeling. Ideal for dialing in grind size and tamping pressure Tips for Best Results: Use freshly ground coffee and adjust your grind size finer for bottomless shots. Recommended dose: 16g for double espresso. Always tamp evenly and use the included puck screen for optimal performance Overview Material : Stainless Steel, Wood Brand : CASABREWS Shape : Basket Number of Pieces : 1 Unit Count : 1.0 Count