About This Wide Compatibility: This 51mm bottomless portafilter with three ears is designed to fit various espresso machines, including CASABREWS Espresso Machine CM5418, 3700Essential, Mr. Coffee Espresso and Cappuccino Machine, Espresso Machine. Ensure your original portafilter measures 51mm in diameter and has three approximately 4mm thick ears for optimal compatibility. KINDLY NOTE: 51mm Bottomless Portafilter products are only suitable for use with 3 ears and the Prongs Thickness 4mm, NOT FIT Delonghi any Espress Machine. Enhanced Brewing Experience: The bottomless design can help observed the flow column, flow rate, color, flow column stripes, etc., find the defects and errors before extraction, and better judge the uniformity of extraction. For best results, use freshly ground coffee beans, adjust grinder settings for finer consistency, and utilize tools like a WDT (Wiggle, Distribute, Tamp) for even distribution and tamping. Be sure to tamp the coffee evenly, these steps will help reduce channeling and spurting during extraction. Durable Construction: Crafted from high-quality food-grade stainless steel, this portafilter ensures long-lasting durability while maintaining excellent heat retention. The manually polished surface provides a sleek, professional appearance and resists corrosion for years of reliable use. The handle is made of high-quality plastic, with a sturdy surface and ergonomic design that allows for comfortable grip and easy manual control. Included Filter Basket: Comes with a 51mm stainless steel filter basket featuring a 2-cup capacity (up to 18 grams of ground coffee). Verify the dimensions of your espresso machine’s original portafilter before purchase to ensure it aligns with the 51mm size and three-ear design. Easy Maintenance: Designed for convenience, this portafilter is easy to clean and maintain. Simply rinse under warm water after each use and wipe dry to keep it in pristine condition. Its smooth finish prevents coffee residue buildup, ensuring consistent performance over time. Overview Material : Stainless Steel Brand : JUSTHERE Shape : Basket Unit Count : 1.0 Count Package Size Name : Single