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Nitrogen Purge Control Valve Regulator w\/500 PSI Flow Meter 4-Position Flow Control (TST\/PRG\/BRZ\/OFF) Heavy-Duty Brass Body Hybrid Design Nitrogen Purging Regulator for Leak Testing\u003c\/h3\u003e\n\u003cp id=\"b\"\u003e\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eREPLACE PART NUMBER:VN-500\u003c\/li\u003e\n \u003cli\u003e500 PSI 4-MODE PRECISION:The VN-500 supports up to 500 PSI, ideal for conventional copper tube brazing and low-pressure holding leak testing, alongside other high-pressure tasks. Its 4 preset modes ensure precise nitrogen control, while the built-in gauge offers real-time readings for stable, low-adjustment performance\u003c\/li\u003e\n \u003cli\u003eINTEGRATED REGULATOR-FLOWMETER:This all-in-one unit combines a regulator and flowmeter to cut extra equipment and hose swaps. Preset settings allow fast task switching, greatly improving work efficiency\u003c\/li\u003e\n \u003cli\u003eWIDE COMPATIBILITY:Suitable for industrial, HVAC, refrigeration, laboratory and professional use, it reliably performs purging, brazing, testing, leak detection and pressurization with consistent results\u003c\/li\u003e\n \u003cli\u003eTOOL-FREE UNIVERSAL FIT:With a standard CGA-580 inlet and 1\/4\" outlet, it fits most nitrogen tanks and hoses without adapters. The clear gauge monitors gas levels to avoid interruptions\u003c\/li\u003e\n \u003c\/ul\u003e"}