Designed for medium to heavy duty gas welding, cutting, and heating applications, the “Horse” is a style regulator with a 2-3/4" diaphragm and a Victor® style seat mechanism. Truly a “Work Horse.” 2" gauges for easy reading Stem type seat assembly for more reliable performance Forged brass body Chrome plated housing cap Self re-seating external pressure relief valve on oxygen, inert gas, CO2 and nitrogen models Sintered bronze inlet filter Weight: 3 lbs UL listed