MKS Instruments Inc.-HPS Products, Boulder, Co., released a revised and expanded version of the HPS(r) Series 88 catalog of CF ultrahigh vacuum components. The 30-p catalog includes an expanded product description, detailed installation notes, CAD drawings, product dimensions and specifications, as well as part numbers and prices. The Series 88 components include a full line of metal-sealed CF flanges and fittings that are designed for applications requiring a very clean environment, ultrahigh vacuum components, high temperature ranges or where critical and dangerous materials must be contained or excluded.