Compatibility: This portafilter is designed to fit 51mm Bottomless Portafilter for ECOV311./ECOV310./EC200.CD/EC221.B/EC330S/EC152CD/EC156.B/ECP35.31/ECP36.31/EC270/EC0331/ECZ351.W/EC410/EC235./ECI341.CP Coffee Machines and so on. Enhanced Coffee Experience: The bottomless portafilter design elevates your coffee experience by providing a clear view of the coffee flow, allowing for easy identification of extraction issues such as channeling. This feature is invaluable for those perfecting their brewing techniques, ensuring consistently superb espresso . Easy Cleaning: Detachable portafilter design for easy, corner-free cleaning, boosts efficiency, and ensures lasting performance. Color: As Shown Material: ABS+Metal Package Contents: 1x Bottomless Portafilter 2x Filter Baskets(Single cup + double cup) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.