Company has announced 90° bends on the inlet/outlet tubes as a standard option for the 4000 and Aspen stainless steel heat exchangers. Twenty-four different orientations are offered and drawings showing bend and tube length are located on company's website. Stainless steel heat exchangers are used with deionized water and other corrosive liquids that react with copper. These heat exchangers find application in many different batch ovens and gas scrubber systems. Lytron Inc. 55 Dragon Ct. Woburn, MA, 01801