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Description
Model 425-125-580 Premium Single-Stage Pressure RegulatorModel 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. Model 425 125 580 premium
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.- Model 425-125-580 premium heavy duty single-stage regulator
- 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 dual scale easy-to-read gauges
- 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 internal safety relief valve
- Model 425-125-580 Premium Heavy Duty Single-Stage Pressure Regulator
- 7 Years
- Inert-425-125PSI-CGA580
- Harris
- UL
- Argon;Helium;Nitrogen
- Adjusting Screw: Brass T-screw
- 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: Neoprene
- Duty: Heavy
- Equipped With: Tamper proof, self-reseating internal high pressure safety valve
- Gas / Gas Service: Argon;Helium;Nitrogen
- Gauges: 2.5 in. Brass dual scale (psi/kPa)
- Inlet Connection: CGA 580
- Maximum Inlet Pressure (PSIG): 3000
- Outlet Connection: 9/16 in. - 18 RH
- Pressure Regulation PSIG/100 PSIG: 0.20
- Recommended Items/Accessories: Steel Gauge Guard - Red (Fuel) - PN 4300238;Steel Gauge Guard - Green (Oxygen) - PN 4300239;Adaptor - 9/16 in. - 18 (F) x 5/8 in. - 18 (F) PN 90000002
- Seat: PTFE Teflon®
- Supply Pressure Gauge (PSIG): 4000
What's Included: Model 425-125-580 Premium Heavy Duty Single-Stage Pressure Regulator
Model Name: Inert-425-125PSI-CGA580
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.7 ★★★★★
Based on 1719 reviews
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Product Reviews
★★★★★ 5
comfy as heck
Size: X-Large, Color: Black/Graphite (6-pairs)
the only real issue i have with these is if you use them for more active things they wear out kind of quickly
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Reviewed in the United States on June 16, 2022
★★★★★ 5
Some of the best socks I’ve ever worn
Size: X-Large, Color: Black/Graphite (6-pairs)
Some of the best socks I’ve ever worn. I am a size 13 and it’s hard to find good fitting socks (especially in no show) and these fit perfectly. They are also incredibly soft, probably some of the softest I own. I will continue to buy this brand for as long as they are around
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Reviewed in the United States on December 8, 2019
★★★★★ 5
Great sock liners
Size: Medium, Color: (001) Black / Black / Pitch Gray
Awesome socks. Has little gel pad on top of heel for no slip. Thin and comfortable. Previously Purchased at Nordstrom rack and no longer in stock. Happy to find here
Note: Will shrink a little best to air dry
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Reviewed in the United States on April 16, 2026
★★★★★ 5
Very good product
Size: Medium, Color: (001) Black / Black / Pitch Gray
I purchased these to wear inside lowcut slip on casual shoes, I don't particularly like to not wear socks in my shoes for hygienic reasons. Prior to purchasing these socks, all I could find were those made of very light beige hosiery type material , and my slip on shoes would slide around a bit. These are light weight and breathable athletic type material, with a very good gripper strip at the heel. One pair of my slip on casual shoes have a particularly lower cut in the toe area, but the shoe is black and I chose the black color and though I see a hint of the sock there, it matches and does not detract from the look of the casual solid black shoe
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Reviewed in the United States on May 15, 2026
★★★★★ 5
They stay out! No more sock wads!
Size: Medium, Color: (100) White / White / Mod Gray
Best no show socks ever made!!!!! I've been struggling for 2 years to find ones that actually stay on your foot, even other national brands, and I just became content wearing my sneakers without socks. They ALWAYS slid down into my show & I ended up walking on a wad of sock until I could fix it...or usually just took them off after a couple of tries. Enter Under Armor!!! They a mid weight, but not very thick & still breathable. They work too by actually staying on your foot! Not once have they slid down into my show!! Very comfortable but they could be a little more affordable.
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Reviewed in the United States on August 1, 2025