The WPQ10 from Thorlabs is an uncoated quartz Wollaston prism that operates from 400 to 2000 nm. This prism has a clear aperture of Ø10.0 mm and provides beam separation angle of 1° at 633 nm. It has a transmitted wavefront error of less than λ/4 and a surface quality of 20-10 scratch dig. This prism is available in an anodized aluminium housing with 25.4 mm diameter.