VPF15MICRO modified with our 1/4″ stainless Steel valve assembly. The SS valve assembly has 1/4″ valves throughout, and can handle your FDA compliant requirements when filling those low amounts. With this setup you’ll be able to fill from 1ml up to 60ml in one pump of low and medium viscosity level products. If your product is a Vape Company or you work with essential oils, that have flavors or scents that will soak into the nylon and bleed over onto other flavors or oils, you need this option. If you have VG/PG percentage below 70%VG the 1/4″ SS valve assembly is the proper setup.