Adapter Lower Ground Mouth Size 19/22 Upper Ground Mouth Size 19/22 Overall Length 110 mm USP Specification Type I Product Type Adapter Type Adapter Material Borosilicate Glass Color Clear Autoclavable No Features Barbed Hose Connection Joints are the Same Size Standard Taper Inner Joint with Drip Tip at the Bottom and Standard Taper Outer Joint at the Top Standards Not Applicable ASTM Specification E438