The La Marzocco 4x 21g S/S Precision Filter Basket Kit is a set of stainless steel filter baskets designed for high-precision espresso extraction. Each basket in this kit is engineered to hold 21 grams of coffee, making them ideal for double shots. The precision holes in the baskets ensure even water distribution and optimal extraction, resulting in rich and flavorful espresso. These baskets are compatible with La Marzocco machines and are perfect for baristas who want to achieve consistent, professional-quality results in every cup. The durable stainless steel construction ensures longevity and ease of cleaning, making this kit an essential upgrade for serious espresso enthusiasts.