Check the listing for details. Miller Smith 30-15-520 Acetylene Medium Duty Regulator B Tank CGA 520. Condition: New. Listed at 139.99 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 # 30-15-520 • 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 Series 30 rugged medium duty industrial grade regulators are extremely durable and contain Smiths' exclusive Sure Seat filtered seat technology for extended seat and regulator life. The filtered seat prevents contamination from entering the seating area reducing repair costs and down-time. These highly accurate regulators are manufactured with a rugged forged body and corrosion resistant bright nickel-plated bonnet. Series 30 regulators are backed by Smith's 3 year limited warranty. Package of 1 Series: 30 Division: Medium Duty Gas: Acetylene Delivery Range: &nbsp0-15 Max Inlet Pressure: 400 CGA Fitting: 520