Harrington 52895689 2-1/2" Liquid Filled Pressure Gauge 0/200 psi 304 Stainless Steel with Vented Fill Plug 1/4" NPT Bottom Mount Industrial Grade A +/- 2/1/2% Accuracy ASME B40.100 Model 213.53

Bourdon tube pressure gauges are classified as mechanical pressure measuring instruments and operate without any need for electrical power.

These Bourdon tube pressure gauges are liquid filled in a stainless steel case.

The liquid-filled case allows for precise readability, even with high dynamic pressure loads.

The case is constructed of 304 stainless steel with vent plug and stainless steel bayonet ring.

The case connection is sealed with EPDM o-ring (glycerin).

The window is safety glass with Buna-N gasket and the pointer is black aluminum.

The dial is white aluminum with black lettering and the wetted parts are copper alloy.