60 Day 100% money back guarantee. High-precision Hellma Analytics QS cuvette (Art. No. 101-10-40) made of SUPRASIL quartz with a 10×10 mm light path. The white Hellma case inside is factory sealed; stored in an Anton Paar Univette hard case with adapters, as photographed. Ideal for UV-Vis and particle/zeta potential workflows that require a standard 10 mm path and low auto-fluorescence quartz. Appears unused; outer case has light cosmetic marks from storage. Includes only items shown. No testing or calibration was performed. Keyword Block: hellma analytics, suprasil quartz cuvette, high precision cell, 101-10-40, 10 mm path, 10x10 mm, uv-vis cuvette, laboratory cuvette, spectrophotometer cell, sealed cuvette