This low-cost regulator is fitted with a brass sleeve around key parts. It is laser etched to eliminate flaking and rub-off. Test method for evaluating the ignition, sensitivity and fault tolerance of oxygen. Normally, the regulator applies to all medical and emergency treatment. To ensure safety, reliability, and durability, this regulator is manufactured from brass and aluminum. It equipped with a built-in flowmeter and shockproof gauge. It can stably output 50psi each time. This universal regulator is suitable for various types of cylinders that is why it is popular to the market. Besides, it is made of high-quality material and technique so it's easy to maintain with low repair rate.