The STP 120 represents a new tissue infiltration instrument, which combines well-proven technologies with innovations in a masterly way. The robust caroussel design is proven and offers reliable technique on smallest space. The instrument includes either 10 reagent and 2 paraffin containers or 9 reagent and 3 paraffin containers. Up to 10 different programs can be stored allowing bath sequences that can be selected freely at individual programmed infiltration times. A system with extraordinary price/performance ratio. Functional and easy to operate. Cleaning system via charcoal filter prevents solvent odors. Easy refilling and emptying of reagent tubs by simple removal.