Harris 450-125-540 Heavy Duty Oxygen Regulator - 3002497

By Harris

Harris 450-125-540 Heavy Duty Oxygen Regulator - 3002497

By Harris

Regular price $195.70 USD
Sale price $195.70 USD Regular price $242.05 USD

Shipping calculated at checkout.
SKU: HAR3002497

View full details


Model 450 is an economically priced industrial-duty, regulator that has premium features found only in high-priced regulators. The 450 has a stainless steel diaphragm and a Harris exclusive internal tamper-proof self-reseating safety relief device.

  • Economically priced heavy duty single-stage regulator
  • Premium features generally found in high priced regulators
  • Brass "T" screw bar adjusting handle for easier adjustment
  • Brass body and bonnet for longer service life
  • Stainless steel diaphragm for safety and greater strength in adverse conditions
  • 2.5" Brass dual scale easy-to-read gauges
  • One-piece encapsulated seat design with internal filter to protect the PTFE Teflon seat from particulate contamination
  • Equipped with a tamper-proof, self-reseating internal safety relief valve
  • UL listed
  • Made in the USA
  • 7 year warranty



Adjusting Screw Brass "T" screw bar
Body Brass
Bonnet Brass
Certification CGA E-4
UL listed
Cv 0.17
Delivery Pressure Gauge (PSIG) 200
Delivery Pressure Range (PSIG) 0 - 125
Diaphragm Stainless steel
Duty Heavy
Equipped With Tamper proof, self-reseating, internal safety valve
Gas / Gas Service Oxygen (O2)
Gauges 2.5" Brass dual scale (psi/kPa)
Inlet Connection CGA 540
Maximum Inlet Pressure (PSIG) 3000
Outlet Connection 9/16" - 18 RH
Pressure Regulation PSIG/100 PSIG 0.30
Seat PTFE Teflon
Supply Pressure Gauge (PSIG) 4000
Harris 450-125-540 Heavy Duty Oxygen Regulator - 3002497

Customer Reviews

Ratings & Reviews

Write a review

100% Recommend this item


Exclusive Deals & Bundles

Weld Now, Pay Later

Financing & Split Pay Available

Current promotions

Exclusive Offers & Gifts


Knowledgable Support Team