Where only the visible region is needed, these optical glass spectrophotometer cells are the most economical answer. These quality cell parts are ground and polished to exact optical standards. Cells are completely fused to ensure minimum optical distortion over a long life. Will withstand solvent and cleaning solutions, evacuation or pressure differential. Open top cells are rectangular and efficient, and hold a sample volume of 3.5 ml with a light path length of 10 mm. Covers 334 nm to 2500 nm. Matched at 0.5%T.