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Nickel plated steel, with projection plate to prevent damage to tubing by end of screw, with hinged bottom bar for direct fitting and removed without access to ends of tube. AVALIABLE IN BRASS ALSO
Nickel plated, made of iron, good quality for schools. AVALIABLE IN BRASS ALSO
Pinch cock, nickel plated iron, flat jaws for compressing flexible tubing.
Spring-loaded, serrated jaws, with screw to clamp end of lead held in tubular extension, both sides insulated.
For potassium dry reaction Sizes:  ; 5x2.5 Â&nbs p; 7.5x2.5 Â&nbs p; 7.5x5 Â&n bsp; cm Â&nb sp;
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