GMF-3328 Nipple 1/2 Pipe Slip x 2.20" Long- CGA V-10, Connection Number 1340, 1350, 1440, 1450, 1540, 1550 For pressure up to 3500 PSI (20680, 24130 KPA) at 70 F (21.1C) For Air, Argon, Carbon Monoxide, Ethane, Ethylene, Helium, Hydrogen, Krypton, Natural Gas, Neon, Nitrogen, Tetrafuoromethane (R14), Xenon