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Description
NR292301 NITROGEN REGULATOR WITH 0-400 PSI DELIVERY PRESSURETechnical Specifications Part Type Nitrogen Regulator HVAC Pressure Test Tool Part Number CTO NR292301 Delivery Pressure 0 400 PSI Inlet Connection CGA580 (Standard Nitrogen Tank) Outlet Connection 1 4" Male Flare Hose Length 60 Inches (Approx. 1. 5 Meters) Gauge Type Dual Gauge (Tank Pressure & Output Pressure) Cross References Brand Part Number CTO NR292301 HVAC Tools (Generic) Nitrogen Regulator 0 400 PSI Application Usage Category Function
Technical Specifications
| Part Type | Nitrogen Regulator / HVAC Pressure Test Tool |
| Part Number | CTO NR292301 |
| Delivery Pressure | 0 - 400 PSI |
| Inlet Connection | CGA580 (Standard Nitrogen Tank) |
| Outlet Connection | 1/4" Male Flare |
| Hose Length | 60 Inches (Approx. 1.5 Meters) |
| Gauge Type | Dual Gauge (Tank Pressure & Output Pressure) |
Cross References
| Brand | Part Number |
|---|---|
| CTO | NR292301 |
| HVAC Tools (Generic) | Nitrogen Regulator 0-400 PSI |
Application / Usage
| Category | Function Description |
|---|---|
| HVAC Service Tool | • Leak Testing: Used to pressurize A/C systems with nitrogen to locate leaks. • Purging: Used to flush lines during brazing or cleaning. • Universal Fit: Compatible with all Heavy Duty Truck A/C systems (Freightliner, Kenworth, Peterbilt, Volvo, etc.) for maintenance purposes. |
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
4.4 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 5
Men's watches
Color: 6617: Two tone strap & blue dial
Stillesh watch, beautiful look, accurate
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Reviewed in the United States on April 20, 2026
★★★★★ 1
Zero customer service, doesn’t keep time.
Color: 6633: Black band & black dial
Looks nice. Doesn’t work.
This watch does not keep time. You’ll be resetting it constantly, and every time you do, the poorly placed dials end up shifting the date too.
The design is impractical. The buttons and dials get bumped during normal, everyday use, which throws everything off again. The date display is also extremely hard to read, especially if you have even minor vision issues.
The glow feature? Never worked at all.
As for the warranty, don’t count on it. The seller is unreachable, and the listed phone number is out of service. I even purchased an extended warranty, only to find out it’s useless until the original 24-month warranty expires, which you can’t even use in the first place.
Bottom line: this is a good-looking piece of junk. Save your money.
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Reviewed in the United States on April 23, 2026
★★★★★ 5
Better than I expected
Color: G6721: Two tone band & Blue dial
Have not worn it yet, but very beautiful watch and I love how it’s built and designed
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Reviewed in the United States on February 26, 2026
★★★★★ 3
Readability
Color: 6633: Black band & black dial
It is a beautful and heavy watch with interesting dial components. I'm not sure how it can claim to be self-winding, when it requires manual turning every 1-2 days. Biggest disappointment for me is readability. It has no backlighting, so it needs hands with more contrast and more luminescent surface, neither of which it posesses. So, it is practically useless in low light situations... a daytime device at best.
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Reviewed in the United States on April 1, 2026
★★★★★ 5
Reloj automático, hermoso diseño
Color: 6633: Gold band & gold dial
Este reloj lo compre ase casi un año y quise esperar para poder dejar una justa reseña, en lo personal no tengo quejas del producto me gusto mucho su diseño además de que lo uso permanente me e bañado en piscina su color y estructura sigue intacto me alegra saber que ise una buena compra y paso por aquí a recomendarles
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Reviewed in the United States on November 4, 2025