For sale is a lot of FIVE, 3000 PSIG pressure gauges.  These were factory cleaned for use in oxygen regulators and can be used in many other applications, like pressure washers, nitrous tanks etc.  The glow in the dark feature is great for low light use.  The back is stainless steel with a brass 1/8" male pipe connection.  These come pre-wrapped with Teflon tape ready for installation. These were made in the USA.  Since they were bulk packaged, they will be repackaged for shipping.  Shipping cost is actual cost, I do not charge for packing and handling.  I usually ship the same or the next day on my sales.  Contact me if you need a larger quantity and I will create a listing for that quantity.