Fisherbrand™ Micro Blood Collecting Tubes Available on GSA/VA Contract for Federal Government customers only.

With tapered bottom tips to facilitate micro blood sample collection

 View more versions of this product

Catalog No. 02-668-25

Add to Cart
  Our pricing system is currently unavailable. You are viewing list price.
You can save item(s) to your list now to purchase when our pricing system is available.


    Capacity (Metric) 350μL
    Applications Natelson and Caraway techniques
    Additive Ammonium Heparin
    Color Red
    Diameter (Metric) Inner 2.59 to 2.81mm
    Length (Metric) Tube 75mm
    Product Type Micro Blood Collecting Tubes

    • For Natelson and Caraway techniques
    • Color-coded tops distinguish between plain and heparinized tubes
    • Heparinized tubes are treated with ammonium heparin
    • Natelson tubes have 1.44 to 1.76mm I.D., 147mm length
    • Caraway tubes have 2.59 to 2.81mm I.D., 75mm length

  • Description & Specifications
  • Accessories

Related Products

Product Content Feedback

We continue to work to improve your shopping experience and your feedback regarding this content is very important to us. Please use the form below to provide feedback related to the content on this product.

Product Title

By clicking Submit, you acknowledge that you may be contacted by Fisher Scientific in regards to the feedback you have provided in this form. We will not share your information for any other purposes. All contact information provided shall also be maintained in accordance with our Privacy Policy.

Cancel Submit