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3 inch NH / NST fittings measure approximately 3 5/8"
Sign mounts using 2 approximately 3/8" holes aligned vertically along the center line
rugged wrench for rocker lug and pin lug couplings
Female threads do not swivel
Thermoplastic 3 inch NH / NST threaded cap with chain
Brass Pin Lug 4 1/2" NH Cap Female Size_5 Inch 3 inch NH / NSTBrass caps are for protection of fire hoses, pipes or valve fittings. Gasket installed. Safety Note Not intended for pressure applications for protection only. WARNING: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm. Do not use in connection with drinking water. Wash hands after handling.