This range of liquid filled general purpose pressure gauges have proven to be reliable and efficient while still remaining at a reasonable price.  With a 100mm diameter 304 stainless steel case with copper alloy internals, polycarbonate window, 3/8" male BSPT bottom mount inlet, glycerine filled with vent plug, aluminium pointer and, an accuracy of +/- 2.5 % of full scale, they are a cost effective unit.  The indication dials are printed in black showing kPa and red showing psi.  Reliable and cost effective pressure gauges for pressure measurement in water lines, pumps and most general applications.    0 - 4,000 kPa range.