Vented Elbow Union Coupling Brass Liquid Level Gages feature a square shank with a pipe thread that screws horizontally into a tapped hole. A full rotational clearance is not necessary; the union coupling is installed without rotating the entire gage. 

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Item #

Sight Opening

Height from Center of Mounting Hole

Mounting Thread

Glass Diameter

Feature

Body Material

N/A 1 1/32" N/A 1 15/16" N/A 1/8" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
N/A 1 1/32" N/A 1 15/16" N/A 1/4" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
N/A 1 1/32" N/A 1 15/16" N/A 3/8" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
N/A 1 17/32" N/A 2 7/16" N/A 1/8" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
N/A 1 17/32" N/A 2 7/16" N/A 1/4" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
N/A 1 17/32" N/A 2 7/16" N/A 3/8" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
N/A 2 1/32" N/A 2 15/16" N/A 1/8" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
N/A 2 1/32" N/A 2 15/16" N/A 1/4" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
N/A 2 1/32" N/A 2 15/16" N/A 3/8" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
N/A 2 17/32" N/A 3 7/16" N/A 1/8" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
N/A 2 17/32" N/A 3 7/16" N/A 1/4" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
N/A 2 17/32" N/A 3 7/16" N/A 3/8" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
N/A 3 1/32" N/A 3 15/16" N/A 1/8" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
N/A 3 1/32" N/A 3 15/16" N/A 1/4" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
N/A 3 1/32" N/A 3 15/16" N/A 3/8" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
N/A 3 17/32" N/A 4 7/16" N/A 1/8" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
N/A 3 17/32" N/A 4 7/16" N/A 1/4" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
N/A 3 17/32" N/A 4 7/16" N/A 3/8" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
N/A 4 1/32" N/A 4 15/16" N/A 1/8" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
N/A 4 1/32" N/A 4 15/16" N/A 1/4" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
N/A 4 1/32" N/A 4 15/16" N/A 3/8" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
N/A 4 17/32" N/A 5 7/16" N/A 1/8" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
N/A 4 17/32" N/A 5 7/16" N/A 1/4" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
N/A 4 17/32" N/A 5 7/16" N/A 3/8" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
N/A 5 17/32" N/A 6 7/16" N/A 1/8" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
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