Accepts a 49 mm tamper base. Basket height is 23.7mm. 

These baskets will not fit the Millennium model. The Millennium model was manufactured after August of 2000. Use item MP68 for models manufactured after this date. If you are unsure of your models manufacturing date, measure the inside of your existing basket: the Millennium model baskets measure 51 mm (2.008 in.), and the pre-millennium models baskets measure 49 mm (1.928 in.) I.D.