The Tradepro TP-NR800 Nitrogen Regulator 800 PSI provides precise pressure control for nitrogen use in HVAC, refrigeration, and industrial servicing. Designed to regulate high-pressure gas from a cylinder to a safe, consistent working pressure, it ensures stable operation during system purging, leak testing, and charging. The regulator features clear, easy-to-read gauges and a smooth ... https://www.wholetoolbox.com/tradepro-tp-nr800-nitrogen-regulator-800-psi