SKU: 53321857329

Model 450-125-540 Single-Stage Pressure Regulator

Sale price$119.03 Regular price$132.25
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 12 - Aug 17

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Description

Model 450-125-540 Single-Stage Pressure RegulatorModel 450 is an economically priced, heavy duty, single stage, industrial duty regulator that has premium features found only in high priced regulators. It has a Harris exclusive internal tamper proof self reseating safety relief device, one piece encapsulated seat design with internal filter and PTFE Teflon seat and a stainless steel diaphragm. Conveniently packaged in clamshell for point of purchase display. Model 450 125 540 stainless steel

Model 450 is an economically priced, heavy-duty, single-stage, industrial-duty regulator that has premium features found only in high-priced regulators. It has a Harris’ exclusive internal tamper-proof self-reseating safety relief device, one-piece encapsulated seat design with internal filter and PTFE Teflon® seat and a stainless steel diaphragm. Conveniently packaged in clamshell for point-of-purchase display.
  • Model 450-125-540 stainless steel diaphragm heavy duty single-stage regulator for use with oxygen. (Clamshell)
  • Model 450 is an economically priced, heavy-duty, single-stage, industrial-duty regulator that has premium features found only in high-priced regulators. It has a Harris’ exclusive internal tamper-proof self-reseating safety relief device, one-piece encapsulated seat design with internal filter and PTFE Teflon® seat and a stainless steel diaphragm. Conveniently packaged in clamshell for point-of-purchase display.
  • Economically priced heavy-duty single stage regulator
  • Boasts 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 in. 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 tamperproof, self reseating, internal high pressure safety relief valve
  • UL® listed
  • Model 450-125-540 Heavy duty Stainless Steel Diaphragm Single-Stage Pressure Regulator
  • 7 Years
  • 450-125-540 Clam
  • Harris
  • UL
  • Oxygen
  • 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 in. Brass dual scale (psi/kPa)
  • Inlet Connection: CGA 540
  • Maximum Inlet Pressure (PSIG): 3000
  • Outlet Connection: 9/16 in. - 18 RH
  • Pressure Regulation PSIG/100 PSIG: 0.30
  • Seat: PTFE Teflon®
  • Supply Pressure Gauge (PSIG): 4000

What's Included: Model 450-125-540 Heavy duty Stainless Steel Diaphragm Single-Stage Pressure Regulator

Model Name: 450-125-540 Clam

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 53321857329

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A. Parker
Phoenix, US
★★★★★ 5
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Color: Carhartt Brown (Bifold), Color: Carhartt Brown (Bifold)
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Reviewed in the United States on April 17, 2026
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Amazon Customer
Lowell, US
★★★★★ 5
My two cent review
Color: Carhartt Brown (Trifold)
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Reviewed in the United States on April 14, 2026
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Mark A. Ordal
Grantham, US
★★★★★ 4
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Reviewed in the United States on December 12, 2025

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