The Hoffman clamp allows added control using a screw type adjustment which allows for regulation of the amount of air or liquid moving through the hose. Product Features * * * * * *Our Products are designed for laboratory use only. Children under 12 should not use labororatory products by themselves or unsupervised by a responsible adult.
Fisher "castaloy" lab stand clamp, this rotates at the center, has a clamp to hold onto a rod and a larger clamp to hold onto a test tube etc. Used in good condition. For more Pictures click on these links: Image01 TERMS
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