Plunger size and cylinder size must always match. For example, a 1-3/4" plunger must always be used with a 1-3/4" cylinder. However, you can use any variety of 1-3/4" plunger with a cylinder of the same size. Used with Type B and Type F depositors. Belshaw Adamatic by Unisource Dunkerette Plunger for Type B/F Depositors 1-3/4" [7-1025x1-3/4] is perfect for your establishment. Belshaw Adamatic Bakery Group has served the baking industry for over 90 years and is one of the leading bakery equipment companies in the USA. Belshaw and Adamatic combined in 2007 to provide equipment for retail and wholesale bakeries, QSR’s, Supermarkets, Concession operators, and many more.