Shop / Best Selling Cuvettes / Precision Cells Type 21FL Macro Fluorescence Cuvette with PTFE Stopper (Lightpaths 5-50mm)

Precision Cells Type 21FL Macro Fluorescence Cuvette with PTFE Stopper (Lightpaths 5-50mm) 

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Standard fluorometer cuvette with PTFE stopper. These cells are a must have for any type of experiment that requires an air tight seal.
Features of Precision Cells Type 21FL Fluorometer Cuvette:

  • Highly accurate results, only need to test sample one time
  • Accurate repeatability, Precision Cells cuvettes are made with only the highest quality quartz and glass materials
  • Made by hand, ensuring the highest quality optical polish with no defects.
  • Every cell is thoroughly inspected before leaving the factory. 
  • Precision Cells cuvettes are guaranteed to give you the best optical transmission.
  • Fire fused to ensure the best bonding.
  • Three different materials available: (Optical Glass, UV Quartz, IR Quartz)
  • Lightpaths from 5 mm up to 50 mm available.
  • Stopper provides an air tight seal so gases and liquids will not leak out.
  • Four windows and base optically polished.
  • Includes PTFE stopper.
  • Place your order on-line using the chart below.
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Show All Pricing
  Outer Inner  
Light Path Top Outer Length(mm) Width (mm) Height (mm) Length (mm) Width (mm) Capacity (ml)  
5mm PTFE Stopper  7.5  12.5  49.0  5.0  10.0  1.700  View Pricing Info
10mm PTFE Stopper  12.5  12.5  49.0  10.0  10.0  3.500  View Pricing Info
40mm PTFE Stopper  42.5  12.5  49.0  40.0  10.0  14.000  View Pricing Info
50mm PTFE Stopper  52.5  12.5  49.0  50.0  10.0  17.500  View Pricing Info
Unfamiliar with some of these terms? Go to our special Cuvette FAQ for easy to find explanations.
  Average Customer Rating 5 / 5

Product Comments & Ratings


Great cuvette! I prefer the stopper to the twist caps, and the stopper doesn't leak if you need to invert for mixing. Has worked well for our analyses.

by Aaron Francis
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