Milli-Q Direct Description Milli-Q® Direct Water Purification System is a single device, in which both RO (Type 3) water and ultrapure (Type 1) water are produced directly from potable water. Request Info Other Products From Merck Life Science DiluCult Read More » Milli-Q® IX 7000 Series Read More » Milli Q HX 7000 Read More » Scepter 3.0 Read More »