The Model 1739 triple brush shampooer-scrubber was manufactured by Electrolux Corporation from 1993-94.  The company is now called Aerus LLC and is headquartered in Dallas, Texas with store locations throughout the USA and Canada.  You may contact an Aerus associate to receive a price quote on a storage tray by visiting aerusvacuums.com. You may also wish to obtain a free electronic copy of the current model's manual.  Just click on the Support tab, select the Download Manuals hyperlink, choose Lux Floor Pro from the Current Models menu, and click Download.  Regards.