Vacuum Pump with 200mm Pump Plate Subcategory_Test Strips polished with ground edges for

polished with ground edges for image-formation experiments in introductory optics

Two rectangular slots accept square or round rods up to 16 mm in this aluminum alloy multipurpose clamp holder

built for classroom and professional laboratory storage

Glass equilibrium tubes with plastic base demonstrate pressure equilibrium

sized to read one step up from the 0-1A meter when student circuits draw past the lower meter's full-scale deflection

Vacuum Pump with 200mm Pump Plate Subcategory_Test Strips polished with ground edges forHand operated vacuum pump with a 200mm copper pump plate and rubber seal, a battery free source of partial vacuum for bell jar demonstrations without external power.