Amazon.com: 58mm Bottomless Portafilter for Espresso Coffee Machine Compatible with GAGGIA Classic Pro 304 Stainless Steel Two Ears,Filter Basket, Spoon,Brush (Gaggia): Home & Kitchen
Amazon.com: Gaggia Classic Pro PID Upgrade Kit: The Main Components (US Version) with Fast US Shipping, Gaggia Classic Pro PID Kit by Sungaze Coffee: Home & Kitchen
Amazon.com: 58mm Bottomless Portafilter for Espresso Coffee Machine Compatible with GAGGIA Classic Pro 304 Stainless Steel Two Ears,Filter Basket, Spoon,Brush (Gaggia): Home & Kitchen