Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

I hear you Tom
I have found another supplier for the 0-30 psi gauges & they also are threaded internally 6/32 tpi. They are rear mount & I have used many in my latest video's. I contacted the EBay seller and shaved a few dollars off each by buying in bulk. These aren't really good to be on top of open flamed boilers , but with enough distance , they work out fine.
copy & paste " 1/8" MNPT Mini Micro Air Pressure Gauge 0-30 PSI 1" Face CBM Center Back Mount  "in eBay & it should come up from compressor source, these are the best value I've found in awhile. I lightly chuck them up in my lathe with a cardstock wrapping around the plastic lenses, & shave the threads off & use & 3/16" brass pipe threaded the proper tpi.for the internal use threads.