Victor Professional High Pressure Sr 4, High Capacity, K (4500 Psig), Nitrogen, Argon, 680, 1/4' Stainless Tube Fitting 0781-1470 VIC0781-1470 - Gas and Supply
Amazon.com: Nitrogen Regulator High Pressure Regulator Singel Stage Large Pressure Reducer (0-1400PSI) : Industrial & Scientific
Flame Tech High-Pressure Piston Regulator for Inert Gases, Gas Regulator for Nitrogen Gas and Argon Gas, Forged Brass Body and Bonnet, Easy to Read Dual Scale, Precise Stabilized Control: Amazon.com: Tools &
Yıldız Gaz Armatürleri - High Pressure Regulator - Nitrogen