The DuraChoice PB254L-V160 oil filled vacuum gauge has a 2-1/2" dial size, with 1/4" NPT lower mount fitting. It features a stainless steel case with brass fittings, and measures -30HG-160 PSI.
The DuraChoice PB405L-V160 oil filled vacuum gauge has a 4" dial size, with 1/2" NPT lower mount fitting. It features a stainless steel case with brass fittings, and measures -30HG-160 PSI.