Check the listing for details. Miller Smith 30-450-580 Nitrogen Medium Duty Regulator. Condition: New. Listed at 148.99 USD. The Welding Superstore Our eBay Store About Us Contact Us Add to Favorite Sellers Please note the shipping delivery estimate before placing your order! Miller Smith Part # 30-450-580 • Sure Seat filtered seat technology prevents contamination from entering the seating area, reducing repair costs and downtime. • Highly durable neoprene composite diaphragm offers precise adjustment of outlet pressure and extended service life. • 2.0 inch corrosion-resistant polished brass gauges with shatter-resistant polycarbonate lenses. • The nickel-plated bonnet, along with brass body, protects against corrosion. • Protects regulator from damage do to inadvertent high-pressure surge. Relief valve will release excessive pressure and automatically reset. Smith's single stage nitrogen regulator is specially designed to meet the specifications of HVAC refrigerant purging applications. This regulator is designed for use with nitrogen to test HVAC systems to locate leaks and to purge an area for installation or repair. It's compact size is suitable for use where space is limited. It features a solid brass body for durability, a large durable nylon adjusting knob for easy pressure adjustment, and 2 highly accurate 2" gauges with shatter resistant lenses. This regulator is also backed by Smith's 1 year limited warranty. Series: 30 Division: Medium Duty Gas: Nitrogen Delivery Range: &nbsp0-450 Max Inlet Pressure: 3000 CGA Fitting: CGA 580