Sight Glasses

Proto® Telescopic Rectangular Inspection Mirror, 2-1/8"L x 3-1/2"W Versatile all-angle ball joint. Features telescoping handle (J2372 and J2373). With pocket clip (J2373).

Genuine glass of high stability and scratch proof. Sealing with an O-ring on the periphery and not on the face edge of the glass. Leak tightness is therefore not affected by axial pressures. The seal is housed in a groove and it can therefore not be lost. In addition, this groove prevents the seal from being extruded when the sight glass is tightened. The location of this seal allows also the softer elastomer which guarantees better and easier sealing. Fluid level sight glasses GN 743 can be used on pressurized oil tanks. NBR seal: maximum heat resistance: 100° C (212° F). When ...

Metal compasses, liquid filled with clinometer, level bubble, tripod attachment, pointing eyepiece. Instructions for use in 8 languages.

Proto® Circular Inspection Mirror - 1-1/4" Diameter Versatile all-angle ball joint. Features telescoping handle (J2372 and J2373). With pocket clip (J2373).

A low cost choice for light duty applications. Maximum heat resistance of nylon plastic: 194° F (90° C).