YaeTek 0-600 PSI Delivery Pressure Nitrogen Regulator Brass CGA580 Inlet 1/4'' Male Flare Outlet Connection Gauges with 60 Inch Refrigeration Hose

Big dual gauges with scratch-resistant plastic protective film and rubber cover, 2.5" diameter with 2 inch face dial on the nitrogen regulator. A 60 inch (1.5m) length refrigeration hose will give you a safe distance to avoid any injury.
Input: 0-4000PSI. Output: adjustable 0-400PSI. The index in the meter is very easy to read. NOTE: The gauge shows 600PSI but you'd better rate them at 400PSI, however they are able to go up to 600PSI.
CGA-580 Inlet connector of this item fits standard Nitrogen, Argon, Helium, and Inert Gas tanks in market. 1/4 Inch Male Flare Outlet Connection fits HVAC charging hoses for HVAC unit pressure checking and purging.
The brass nitrogen regulator can be adjusted smoothly and accurately through the T-handle, a detachable operating lever, to prevent galling.
The Nitrogen regulator is a standard pressure control valve, widely used to reduce the input pressure from gas or liquid stored in a pressurized tank. It is a great tool used for HVAC purge, pressure test for air conditioning, leakage tests, soldering and keg beer distribution.