Utilizing either front flanged or U-clamp cases, these attractive panel mount gauges can be flush mounted on instrument panles, pressure test stands, steam cleaners, sterilizers, and many other types of equipment. Where a minimum of space is available, the 844 U-clamp series is more desirable. When it is desirable to mount the gauge from the front of panel, the 845 front flanged series may be specified. All models utilize a unique one-piece plastic threaded ring and window which can be removed, permitting in-panel pointer adjustment. Optical stainless steel bourdon tube and socket for use where the pressure medium is corrosive to copper alloys.