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 7 - Aug 12

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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
Verified Purchase
Amazon Customer
Alexandria, US
★★★★★ 5
2016 Honda civic ex
Item Package Quantity: 1
Fits perfectly in my 2016 Honda Civic EX. Installation was quick and easy, and the air coming from the vents smells much cleaner now. It seems to trap dust and pollen well and is a good replacement for the OEM filter.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 11, 2026
Q
Verified Purchase
Quilly
Lake Worth, US
★★★★★ 5
Do it yourself and save big bucks
Item Package Quantity: 1
Perfect fit and reasonable price. Easy to replace in my 2019 Honda CR-V. It takes about 10 minutes to replace. Don't let a dealership rip you off.
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Reviewed in the United States on May 14, 2026
A
Verified Purchase
Amazon Customer
San Leandro, US
★★★★★ 5
2017 Honda Civic Air Cabin Filter
Item Package Quantity: 1
Perfect fit and exactly what was needed. No issues, no concerns, and no nonsense. Will buy again when needed.
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Reviewed in the United States on March 23, 2026
G
Verified Purchase
Gary P.
Lake Worth, US
★★★★★ 4
Fits fine.
Item Package Quantity: 1
Fits fine in my 2020 Honda CRV.
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Reviewed in the United States on March 7, 2026
A
Verified Purchase
Atlanta
Alexandria, US
★★★★★ 5
Cabin air filter
Item Package Quantity: 1
Works great! Easy to install, about 5 minutes or less. Will definitely purchase again and would recommend. Used on Honda CRV.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026

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