Slayer Precision Double Basket - 18/20g A stainless steel precision double basket custom-made for Slayer by I.M.S., with a smooth wall finish. Expect a very tight fit in the portafilter, that's by design, not a defect. SPECIFICATIONS Capacity: 18-20g Wall finish: smooth (non-ridged) Manufacturer: I.M.S. (custom for Slayer) INSTALLATION Expect to seat this basket firmly, the tight tolerance is intentional for a secure, even fit, not a sign you have the wrong basket. PRO TIPS Because the fit is deliberately snug, use even thumb pressure around the rim to seat it rather than forcing one edge in first, that avoids cocking the basket slightly, which can cause uneven extraction around the puck edge.