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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. 

B1357 Category
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Item #

Sight Opening

Height from Center of Mounting Hole

Mounting Thread

Glass Diameter

Feature

Body Material

B1357-26 N/A 5 17/32" N/A 6 7/16" N/A 1/4" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
B1357-27 N/A 5 17/32" N/A 6 7/16" N/A 3/8" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
B1357-28 N/A 6 17/32" N/A 7 7/16" N/A 1/8" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
B1357-29 N/A 6 17/32" N/A 7 7/16" N/A 1/4" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
B1357-30 N/A 6 17/32" N/A 7 7/16" N/A 3/8" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
B1357-31 N/A 7 17/32" N/A 8 7/16" N/A 1/8" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
B1357-32 N/A 7 17/32" N/A 8 7/16" N/A 1/4" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
B1357-33 N/A 7 17/32" N/A 8 7/16" N/A 3/8" Male NPTF N/A 1/2" dia N/A Union Coupling N/A Brass
B2574-1 N/A 4 13/32" N/A 5 7/16" N/A 1/4" Male NPTF N/A 5/8" dia N/A Union Coupling N/A Brass
B2574-2 N/A 4 13/32" N/A 5 7/16" N/A 3/8" Male NPTF N/A 5/8" dia N/A Union Coupling N/A Brass
B2574-3 N/A 4 13/32" N/A 5 7/16" N/A 1/2" Male NPTF N/A 5/8" dia N/A Union Coupling N/A Brass
B2574-4 N/A 5 21/32" N/A 6 11/16" N/A 1/4" Male NPTF N/A 5/8" dia N/A Union Coupling N/A Brass
B2574-5 N/A 5 21/32" N/A 6 11/16" N/A 3/8" Male NPTF N/A 5/8" dia N/A Union Coupling N/A Brass
B2574-6 N/A 5 21/32" N/A 6 11/16" N/A 1/2" Male NPTF N/A 5/8" dia N/A Union Coupling N/A Brass
B2574-7 N/A 7 21/32" N/A 8 11/16" N/A 1/4" Male NPTF N/A 5/8" dia N/A Union Coupling N/A Brass
B2574-8 N/A 7 21/32" N/A 8 11/16" N/A 3/8" Male NPTF N/A 5/8" dia N/A Union Coupling N/A Brass
B2574-9 N/A 7 21/32" N/A 8 11/16" N/A 1/2" Male NPTF N/A 5/8" dia N/A Union Coupling N/A Brass
B2574-10 N/A 9 21/32" N/A 10 11/16" N/A 1/4" Male NPTF N/A 5/8" dia N/A Union Coupling N/A Brass
B2574-11 N/A 9 21/32" N/A 10 11/16" N/A 3/8" Male NPTF N/A 5/8" dia N/A Union Coupling N/A Brass
B2574-12 N/A 9 21/32" N/A 10 11/16" N/A 1/2" Male NPTF N/A 5/8" dia N/A Union Coupling N/A Brass
B2574-13 N/A 12 21/32" N/A 13 11/16" N/A 1/4" Male NPTF N/A 5/8" dia N/A Union Coupling N/A Brass
B2574-14 N/A 12 21/32" N/A 13 11/16" N/A 3/8" Male NPTF N/A 5/8" dia N/A Union Coupling N/A Brass
B2574-15 N/A 12 21/32" N/A 13 11/16" N/A 1/2" Male NPTF N/A 5/8" dia N/A Union Coupling N/A Brass
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