Stack ST3112 Black 52mm -30 inHg to +30 PSI Universal T-Fitting Mechanical Boost Pressure Gauge<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Stack Boost Press， Mechanical， 52mm， Blk， -30inHg to +30psi， Universal T-Fitting</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51vLSzJpYqL.jpg" noproxy>