SUPCO Sight Glass Moisture Indicators

Hermetically designed moisture indicator with 3% relative humidity sensitivity, intended for use on refrigerant lines. 3% relative humidity indication compared to 10% paper indicators. Accurate color calibration at low ppm levels and higher temperatures. Wide angle viewing/ high visibility window for ease of monitoring.|All brass corrosion resistant body|Fully hermetic design|Maximum working pressure: 680 psi|Tri color coded: blue/purple/pink