COMPATIBILITY. 51mm double ear portafilter is compatible with ECP3120/ECP3420/EC155/BCO430/EC260 etc. coffee machines. Get a perfect cup of coffee to start a fresh day. 304 FOOD GRADE STAINLESS STEEL. It is made of 304 stainless steel and has the characteristics of oxidation resistance, corrosion resistance, rust resistance and durability. SUBSTITUTABLE. The 2 ear bottomless coffee portafilter includes a 51mm filter basket that is compatible with the 51mm filter basket. A GREAT HELPER FOR MAKING COFFEE. The bottomless allows you to observe the flow column, flow speed, color and scratches more intuitively during extraction. To help you correct and improve your extraction problems. You will be a professional barista. REMOVABLE BLACK WOODEN HANDLE. The handle of the bottomless espresso portafilter is made of selected ebony wood. This comfortable grip structure conforms to the principle of human mechanics, providing you with stable operation. Color: as shown Material: stainless steel +