Amazon.com: MHA-Zentgraf German Stainless Steel 316 High Pressure Ball Valve, 2 1/2” NPT Female Threaded, up to 6000 PSI (420 Bar), MKHP Type Hydraulic Flow Control Valve, 2 Port Shut-Off Valve : Industrial & Scientific
Coltri Thermoplastic Hose 4 ft (1.2 m) · 6090 psi (420 bar) | Nuvair
Amazon.com: MHA-Zentgraf German Carbon Steel High Pressure Ball Valve, 1” NPT Female Threaded, up to 6000 PSI (420 Bar), BKH Type Hydraulic Flow Control Valve, 2 Port Shut-Off Valve : Industrial & Scientific
ZURICH PSI-420 PRESSURE TRANSMITTER 0-40 BAR 4-20 mA | eBay
3.7kw 8 Bar Permanent Magnet Energy Saving 420/Min Silent 116 Psi Scroll Oil Free Air Compressor - China Scroll Oil Free Air Compressor, Screw Air Compressor | Made-in-China.com