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300 uL, 6 x 39 mm Spring Insert for 4 mL Vial (100/pk)
Brand: Chromatography Research Supplies IncAllows small volume sampling in 15x45 mm vials. The trispring inserts have a plastic support spring permanently attached, to center the insert and acts as a shock absorber to prevent needle damage. 300 ul clear tapered-bottom TriSpring insert for 4 mL, 15x45 mm vials. Type 1 borosilicate glass.
