WANNEROO Police are investigating a burglary at a Wangara commercial property in which a number of butterfly valve discs were stolen.
Police believe the business, on Leadership Way, was broken into sometime between July 10 and August 10.
The discs are an unusual item to target and are used in water valves for the municipal water industry.
The discs weigh 55kg each and are 600mm wide.
Anyone with information on the location of the discs should call Crime Stoppers on 1800 333 000 or file a report online at www.crimestopperswa.com.au.