73760 series and 90 series items that end in ‘F’ have flat bottoms which contribute to stability

·         73770 series and 90 series items that end in ‘R’ are produced with a round bottom

·         Modular trays are shrink-wrapped in plastic film

·         Supplied without caps

·         No marking spot

·         Manufactured from 51 expansion borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class B requirements