Test Tube with Side Arm, 150 x 18mm, Borosilicate Glass Subcategory_Tongs Economical minute timer setting intervals

Economical minute timer setting intervals up to one hour via a top knob

providing the high-resistance leg of a voltage divider where current draw needs to stay in the microampere range

adjustable from 0 to 45 degrees with an alignable pulley and included pan and roller

sized for short-pitch breadboard wiring where stackable plugs let multiple leads share a single terminal

Double extra-dense flint glass prism at 1

Test Tube with Side Arm, 150 x 18mm, Borosilicate Glass Subcategory_Tongs Economical minute timer setting intervalsTest tube with side arm in borosilicate 3. 3 glass measures 150 x 18mm for gas collection, distillation, and vacuum filtration applications.