- Model Compatibility: This 54mm bottomless portafilter is designed specifically for the 8 series espresso machines, including BES880, BES878, BES875, BES870, BES840, BES810, Barista Touch, Barista Express, Barista Pro, Infuser, and Duo Temp Pro. Ensure compatibility with your coffee machine for optimal performance. - High-Quality Material: Constructed from 304 food-grade stainless steel, this premium espresso portafilter guarantees durability and reliability. The precision-cast filter screen enables maximum extraction of coffee essence, resulting in a rich and flavorful brew. - Ergonomic Design: The handle is crafted from ABS plastic, featuring a smooth surface and ergonomic shape. This design promotes comfortable handling and precise control during the extraction process, enhancing your overall brewing experience. - Enhanced Extraction Visibility: The bottomless design allows you to observe your coffee extraction in real-time. This visibility helps you identify and correct extraction issues, ensuring a consistently excellent espresso shot every time. - Practical Use Cases: - Perfect for home baristas looking to elevate their espresso-making skills by providing full visibility of the extraction process. - Ideal for coffee enthusiasts who want to troubleshoot their brewing technique and achieve the perfect espresso. - Great for professional settings where quality and consistency are paramount, allowing baristas to refine their craft through direct observation. This bottomless portafilter is an essential accessory for coffee lovers seeking to enhance their espresso experience with quality and precision.