Adapter Lower Ground Mouth Size 24/40 Upper Ground Mouth Size 24/40 Overall Length 140 mm USP Specification Type I Product Type Distillation Bent Type Distillation Bent Material Borosilicate Glass Color Clear Autoclavable No Features Joints are the Same Size Standard Taper Inner Joint at the Bottom and Standard Taper Outer Joint at the Top Standards Not Applicable ASTM Specification E438