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Green Instrument thread Fittings have been developed based on ASME B31.3 for instrumentation and process control in sizes 1/8" to 2". Green Thread and weld fittings have a wrench flat allowing standard Hex wrench assembly. This is one of the Green Pipe fitting benefits.

Male NPT both ends
GNL Series Hex Long Nipple Fittings
GNL Series Hex Long Nipple Fittings-2
Unit of Measure
Items GNL Series Hex Long Nipple Fittings
GNL-2N-SD-100
GNL Series Hex Long Nipple Fittings
GNL Series Hex Long Nipple Fittings
GNL-2N-SD-26
GNL Series Hex Long Nipple Fittings
GNL Series Hex Long Nipple Fittings
GNL-2N-SD-37
GNL Series Hex Long Nipple Fittings
GNL Series Hex Long Nipple Fittings
GNL-4N-SD-100
GNL Series Hex Long Nipple Fittings
GNL Series Hex Long Nipple Fittings
GNL-4N-SD-36
GNL Series Hex Long Nipple Fittings
Material N/A Super Duplex
P - Thread Type N/A NPT
P - Pipe Size N/A 1/8 N/A 1/8 N/A 1/8 N/A 1/4 N/A 1/4
L N/A 100 mm3.94 in N/A 26 mm1.02 in N/A 37 mm1.46 in N/A 100 mm3.94 in N/A 36 mm1.42 in
E N/A 4.8 mm.189 in N/A 4.8 mm.189 in N/A 4.8 mm.189 in N/A 7.1 mm.279 in N/A 7.1 mm.279 in
H - Hex N/A 11.1 mm.437 in N/A 11.1 mm.437 in N/A 11.1 mm.437 in N/A 14.2 mm.559 in N/A 14.2 mm.559 in