About This Dual-Layer Micro-Sift Basket for Cleaner Espresso - Equipped with a dual-layer filter basket featuring over 10,000 micro-sift perforations, designed to regulate flow evenly and reduce ultra-fine grounds—resulting in cleaner extraction, smoother mouthfeel, and balanced flavor. Flat-Based Hollow-Out Bottomless Design - The flat-based hollow-out bottomless portafilter exposes the full extraction process, helping baristas diagnose channeling, refine grind size, and dial in espresso with greater precision. Wide Compatibility with 58mm Espresso Machines - Designed for standard 58mm espresso systems, compatible with popular machines such as La Marzocco, Slayer, Rocket Espresso, and Lelit, as well as other E61-style group head machines, ensuring a secure fit and stable extraction. AISI 304 Stainless Steel Construction - Crafted entirely from food-grade AISI 304 stainless steel, offering excellent heat resistance, durability, and long-term corrosion protection for consistent performance shot after shot. Premium Anodized Aluminum Handle - Finished with a solid anodized aluminum handle for a modern, minimalist look and comfortable grip—lightweight, durable, and easy to maintain, ideal for daily espresso preparation. Overview Material : Anodized Aluminum, Stainless Steel Brand : Chengtech Shape : Disk Number of Pieces : 1 Unit Count : 1.0 Count