Water Filtration Systems for Espresso Dispensing equipment means being certain that the water being used to brew your hot beverage is clear of impurities. 3M Cuno Espresso machine water filters are designed specifically to meet the requirements of an espresso unit. Shop 3M Cuno Espresso Water Filters and Replacement Cartridges at IceMachinesPlus.com. We have a price match guarantee plus expert customer service and competitive prices! Call 877-900-4423.