MANOMETER; PRESSURE RANGE: 160 PSI; THREAD DIAMETER: 1/4 IN; BOX DIAMETE R: 2-1/2 IN; CONNECTION TYPE: NPT; GRAINGER 5NMY1 ; GAUGE TYPE: LIQUID FILLED; CONNECTION LOCATION: LOWER; SMALLEST GRADUATION: 5 PSI; ACCURACY: /-1.6 %; CASE MATERIAL: STAINLESS STEEL; RING: BAYONET