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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Items
B1357-1

Vented Union Coupling Brass Elbow Gage, 1 1/32” Sight Opening, 1/2” Diameter Glass, 1/8” Male NPTF Mounting Thread
B1357-2

Vented Union Coupling Brass Elbow Gage, 1 1/32” Sight Opening, 1/2” Diameter Glass, 1/4” Male NPTF Mounting Thread
B1357-3

Vented Union Coupling Brass Elbow Gage, 1 1/32” Sight Opening, 1/2” Diameter Glass, 3/8” Male NPTF Mounting Thread
B1357-4

Vented Union Coupling Brass Elbow Gage, 1 17/32” Sight Opening, 1/2” Diameter Glass, 1/8” Male NPTF Mounting Thread
B1357-5

Vented Union Coupling Brass Elbow Gage, 1 17/32” Sight Opening, 1/2” Diameter Glass, 1/4” Male NPTF Mounting Thread
Sight Opening N/A 1 1/32" N/A 1 1/32" N/A 1 1/32" N/A 1 17/32" N/A 1 17/32"
Height from Center of Mounting Hole N/A 1 15/16" N/A 1 15/16" N/A 1 15/16" N/A 2 7/16" N/A 2 7/16"
Mounting Thread N/A 1/8" Male NPTF N/A 1/4" Male NPTF N/A 3/8" Male NPTF N/A 1/8" Male NPTF N/A 1/4" Male NPTF
Glass Diameter N/A 1/2" dia
Feature N/A Union Coupling
Body Material N/A Brass
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