Photographers' Formulary Glass Graduate - 25ml Tweet Description The Photographer's Formulary 25ml Graduate is a quality heat treated glass graduate with a glass base for measuring and mixing solutions and powders. This graduate has scale graduations in milliliters. Details Additional Category Tags: Developing & Processing, Developing & Processing Supplies, Graduates Category: Photography Manufacturer Catalog Number: 09-0045 Product Manufacturer: Photographers' Formulary Subcategory: Darkroom Equipment