Model 425 is a premium, single-stage, industrial regulator that is an ideal choice for most industrial applications. This regulator incorporates a number of Harris features designed to make it a rugged, long-lasting performer, including an exclusive tamper-proof, self-reseating internal HP safety valve. The 425 is also available in a multitude of pressure ranges and for all standard industry gases. -- Heavy-Duty -- Pressure Regulation: 0.2 PSIG/100 PSIG -- Gauges: 2.5" Brass -- One-piece encapsulated seat design with internal filter and PTFE Teflon seat. -- 7 Year Warranty -- Made in the USA -- -- -- -- UL listed; CGA E-4