a container for fluid products having telescoping parts and operable by outside manual pressure is provided . a base cup open at the top receives a plunger cup that is slidable therein with product being filled in both cups . a slidable piston in the plunger cup dispenses product from the plunger cup concurrently with the dispensing of the same or different product by the plunger from the base cup . a dispensing nozzle is provided in one of the cups with a transfer tube connecting the nozzle to the other cup . the container assembly includes four injection molded plastic parts , namely , the base cup , the plunger cup , the piston and the cap and nozzle assembly ; these parts snapping together during the combined filling and assembling process . integral snap rings and snap beads are used to lock the parts together . once assembled , the piston locks the plunger cup against either in or out telescoping movement to prevent accidental dispensing during shipping and handling . additional break - off safety strip and heat shrink band at the juncture between the cups may be employed . in products requiring longer shelf life , the band may be required , as well as flip - up or rotary cutoff valves as disclosed . check valves may be advantageously employed , especially for products of low viscosity . different viscosity products are accommodated by sized passages and orifices , reducing inserts for the passages and / or multiple passages . the process provides filling the base cup , assembling the plunger cup and piston and combining with the base cup , filling the plunger cup and installing the cap and safety strip and seal band .