This is a low compound gauge for Robinair and other brands of a/c manifold sets used to service a/c systems on cars. Reads 0-120 psi and 0-30in Hg. 1/8" NPTF male threads.
For Brands:
Robinair
Skye
RTI
Solar
Sercon
Snap-On
All parts warranteed for 90 days from purchase date