The Unico 17.5ml Rectangular Quartz Cuvette (# S-90-311Q) with Stopper has a 50mm Pathlength, 48mm Height, 17.5ml Capacity, and works with UV & Visible Light in the 170nm-2500nm Wavelength Range.

Unico 17.5ml Rectangular Quartz Cuvette Literature:

Unico Spectrophotometer Catalog