Harris Model 425 Propane Single Stage Regulator 425-15-510P - 3000713

By: Harris Products Group
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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 and a neoprene diaphragm.

The 425 is also available in a multitude of pressure ranges and for all standard industry gases.


  • Single-stage industrial regulator with premium features
  • Designed for rugged, long-lasting performance
  • Easy-to-operate brass T-screw adjusting handle
  • Brass body and bonnet for longer service life
  • Neoprene diaphragm for improved pressure control
  • 2.5 in. Brass-plated steel dual scale easy-to-read gauges (psi/kPa)
  • One-piece encapsulated seat design with internal filter to protect the PTFE Teflon® seat from particulate contamination
  • UL® listed
  • Equipped with a tamper-proof, self-reseating, high pressure internal safety relief valve
  • Designed specifically for propane service, but can be used with any of the other welding grade liquid petroleum gases. Not for use with acetylene


Adjusting Screw Brass T-screw
Body Brass
Bonnet Brass
Certification CGA E-4
UL® listed
Cv 0.17
Delivery Pressure Gauge (PSIG) 60
Delivery Pressure Range (PSIG) 0 - 50
Diaphragm Neoprene
Duty Heavy
Equipped With Tamper proof, self-reseating, internal high pressure safety valve
Gas / Gas Service LPG
Any liquid petroleum gases
NOT for use with Acetylene
Gauges 2.5 in. Brass dual scale (psi/kPa)
Inlet Connection CGA 510P
Maximum Inlet Pressure (PSIG) 3000
Outlet Connection 9/16 in. - 18 LH
Pressure Regulation PSIG/100 PSIG 0.20
Recommended Items/Accessories Steel Gauge Guard - Red (Fuel) - PN 4300238
Steel Gauge Guard - Green (Oxygen) - PN 4300239
Adapter - 9/16 in. - 18 (F) x 5/8 in. - 18 (F) PN 90000002
Seat PTFE Teflon®
Supply Pressure Gauge (PSIG) 400


Warranty 7 Years