US$ 66.65
a 23mm neck
supplying the standard tin-alloy filler for joining electronic components without the legacy environmental and handling issues of lead solder
and field strength
5-inch inner ring for seating wire gauze and vessels during classroom heating
and four lenses for focal-length investigations
Ground-Joint Air Condenser, 20cm, 19/26, Borosilicate Glass Lab Equipment and Supplies_Plastic Labware a 23mm neckAir condenser in borosilicate glass measures 20cm with 19 26 ground joint for high boiling point reflux and organic chemistry procedures.