Fused glass style sight windows feature glass to metal bond for utmost reliability. Plated steel bodies have convenient hex wrench surfaces. Connections are standard NPT in sizes from 1/4" to 2". Windows are clear, ripple free, and flush with the front face, having no recess on which dirt might collect. APPLICATIONS • Hydraulic Tanks • Pressure Vessels • Coolant Tanks • Hydraulic Lines • Oil Reservoirs |