Waters WAT081308 Optical Grating Assembly W/ BushingWaters WAT081308 Optical Grating Assembly with Bushing The Waters WAT081308 Optical Grating Assembly is a precision optical component used in chromatographic and spectrometric detection systems. It employs a finely ruled diffraction grating mounted within a stable mechanical housing and fitted with an alignment bushing for accurate positioning. The assembly ensures consistent wavelength dispersion, high optical stability, and precise spectral