Reviews Stopcock With Extension Tube

Cole-Parmer AO-07879-20 37918-0110 Automatic Self-Zeroing and Supporting Burette, 15 Ml; 1/Pk

Delivery end is fitted into a plastic push button stopcock which permits drop by drop delivery.
Small screw clamp adjusts drop speed as needed for titration.
Polyethylene filling tube extends from the top of the burette into the bottle reservoir.
Bottle, screw cap and round base are polyethylene plastic.

Package include: a 500ml Lab Reaction Flask with 29# Joint, PTEF Stopcock and Long single neck.
Premium Materials: Reaction Flask is made from Borosilicate 3.3 Glass materials, which has a very low coefficient of thermal expansion, about one-third of ordinary glass. Resistant to high temperature and Resistant to 200 ° C temperature change..
This Reaction Flask consists of a tube flask facilitates heating and stirring. It has a sidearm fitted with a PTFE stopcock connecting to a vacuum or inert gases source. the top ground glass joint is used to attach the flask to other lab glassware apparatus, or stopped by a penney head stopper, rubber septum, permitting easy transfer of liquids or solids..
Each flask is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. They are manufactured with only the highest grade, raw materials and according to international quality standards to ensure that they can withstand use in even the toughest laboratory environments..
Great for Professional Laboratories, Classrooms & Household.
Superior chemical durability and heat tolerance. Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use..

Package include: a 150ml Lab Reaction Flask with 19# Joint, PTEF Stopcock and Long single neck.
Premium Materials: Reaction Flask is made from Borosilicate 3.3 Glass materials, which has a very low coefficient of thermal expansion, about one-third of ordinary glass. Resistant to high temperature and Resistant to 200 ° C temperature change..
This Reaction Flask consists of a tube flask facilitates heating and stirring. It has a sidearm fitted with a PTFE stopcock connecting to a vacuum or inert gases source. the top ground glass joint is used to attach the flask to other lab glassware apparatus, or stopped by a penney head stopper, rubber septum, permitting easy transfer of liquids or solids..
Each flask is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. They are manufactured with only the highest grade, raw materials and according to international quality standards to ensure that they can withstand use in even the toughest laboratory environments..
Great for Professional Laboratories, Classrooms & Household.
Superior chemical durability and heat tolerance. Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use..

Package include: a 100ml Lab Reaction Flask with 24# Joint, PTEF Stopcock and Long single neck.
Premium Materials: Reaction Flask is made from Borosilicate 3.3 Glass materials, which has a very low coefficient of thermal expansion, about one-third of ordinary glass. Resistant to high temperature and Resistant to 200 ° C temperature change..
This Reaction Flask consists of a tube flask facilitates heating and stirring. It has a sidearm fitted with a PTFE stopcock connecting to a vacuum or inert gases source. the top ground glass joint is used to attach the flask to other lab glassware apparatus, or stopped by a penney head stopper, rubber septum, permitting easy transfer of liquids or solids..
Each flask is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. They are manufactured with only the highest grade, raw materials and according to international quality standards to ensure that they can withstand use in even the toughest laboratory environments..
Great for Professional Laboratories, Classrooms & Household.
Superior chemical durability and heat tolerance. Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use..

Delivery end is fitted into a plastic push button stopcock which permits drop by drop delivery.
Small screw clamp adjusts drop speed as needed for titration.
Polyethylene filling tube extends from the top of the burette into the bottle reservoir.
Bottle, screw cap and round base are polyethylene plastic.

【Microscope Extension Tube, See the Entire Coin Clearly】 This extension tube can extend the length of the digital microscope stand. It can obtain a wider and higher field of view under microscope observation. Very suitable for coin and stamp inspection..
【Compatible with Most LCD Digital Microscopes】Elikliv extension tube is compatible with Tomlov, Elicliv, Opqpq or other brands of digital microscopes.
【Sturdy Aluminum Alloy Material】 It is made of aluminum alloy material, which makes this extension tube durable and beautiful. Strongly support your digital microscope.
【Small and light】 The length of the microscope extension rod is about 6 inches (15.2 cm), and the net weight is about 5.3 ounces (220 grams). Light weight, easy to carry and store.
【Easy installation】 Just screw the extension tube to the digital microscope. With extension rods, you can easily achieve higher-angle digital microscope view.

Precision bore burette has a side filling tube with a separate stopcock to control liquid within the permanently attached reservoir, approximately 70mL in capacity.
Reservoir stopper is medium length, standard taper, 14/22.
Calibrated to the accuracy requirements found in ASTM Specification E696.