Adapter Lower Ground Mouth Size 24/40 Upper Ground Mouth Size 24/40 Overall Length 195 mm USP Specification Type I Product Type Adapter Type Adapter Material Borosilicate Glass Color Clear Autoclavable No Features Standard Taper 10/30 Joint at the Top of Main Tube for Use with a 75 mm Immersion Thermometer Standards Not Applicable Upper Ground Stopper Size 10/30 ASTM Specification E438