--- product_id: 343584116 title: "SNS AR4000-N04 Female Thread 1/2 NPT Air Pressure Regulator 0-150 PSI Adjustable,Bracket,Gauge" brand: "sns" price: "309.12 DT" currency: TND in_stock: true reviews_count: 13 category: "Sns" url: https://www.desertcart.tn/products/343584116-sns-ar4000-n04-female-thread-1-2-npt-air-pressure store_origin: TN region: Tunisia --- # 1/2" NPT thread size 211.9 SCFM max flow 5~60℃ operating temp SNS AR4000-N04 Female Thread 1/2 NPT Air Pressure Regulator 0-150 PSI Adjustable,Bracket,Gauge **Brand:** sns **Price:** 309.12 DT **Availability:** ✅ In Stock ## Summary > 🔧 Elevate your airflow game with precision and durability! ## Quick Answers - **What is this?** SNS AR4000-N04 Female Thread 1/2 NPT Air Pressure Regulator 0-150 PSI Adjustable,Bracket,Gauge by sns - **How much does it cost?** 309.12 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/343584116-sns-ar4000-n04-female-thread-1-2-npt-air-pressure) ## Best For - sns enthusiasts ## Why This Product - Trusted sns brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Flow Control:** Adjust pressure smoothly from 0 to 150 PSI with a simple twist for optimal performance. - • **Wide Temperature Range:** Operates efficiently between 41°F and 140°F, perfect for diverse industrial conditions. - • **Trusted Industry Leader:** Ranked #1 in Compressed Air Regulators with over 1,100 positive reviews—join the pros who rely on SNS. - • **Durable Aluminum Alloy Build:** Lightweight yet robust construction ensures long-lasting reliability in demanding environments. - • **Universal Mounting Flexibility:** Gauge can be mounted on either side, adapting perfectly to your setup without hassle. ## Overview The SNS AR4000-N04 is a high-performance air pressure regulator featuring a 1/2" NPT thread, adjustable pressure up to 150 PSI, and a rated flow of 211.9 SCFM. Crafted from durable aluminum alloy, it operates reliably within a 5~60℃ temperature range. Its versatile design allows gauge mounting on either side, making installation flexible and user-friendly. Trusted globally and ranked #1 in compressed air regulators, it’s the go-to choice for professionals seeking cost-effective, precise pressure control. ## Description The main products of SNS are air combinations, cylinders, valves, fittings, hydraulic components etc. Nice exterior, reassuring quality and cost effective are always what we pursue. Our products sell well in all over China and in the international market of the Southeast Asia, European and American Countries, the Middle East, etc. SNS has obtained customers’ trusts and good reputation. Shop Our Best Sellers Review: Gets the job done - Fixed my compressor's leak problem. Well not 100%, but the remaining leak is very slow and is likely happening elsewhere. I'm good now, because my compressor might self-cycle once every hour as opposed to once every 5-10 minutes. For my occasional use, that's totally acceptable. I did have to dismantle more than I was expecting, because my pancake tank didn't have enough clearance to directly attach this. I had to remove the main assembly and gauge to be able to screw this in. Others commented about a lack of instructions. Mine has an arrow on the back that showed the direction of airflow, and it does not seem to leak air. Review: Impressive!!! - This is a solid regulator/filter, it's accurate and easily adjusted. The one thing that I LOVE, LOVE, LOVE, about this regulator is the fact that you can mount the gauge on either side. When I first bought it it hit me. I thought, "Oh no I forgot these always run with the flow left to right so the gauge is going to be backwards!" Luckily because of its design this wasn't an issue. It has a nice deep polycarbonate bowl just like an expensive ½ regulator. As far as catching water it does its job just as it's intended to. One thing I didn't like is the cheap gauge that came on it, so that's one thing I replaced (as seen in video). Overall for the price you can't go wrong. It seems to be durable enough and installation was a breeze. As far as compatibility it was completely compatible. A great purchase for sure! ## Features - Thread: 1/2 NPT - Rated Flow: 211.9 SCFM (6000 L/min) - Temperature Range: 5~60℃(41-140℉) - Aluminum Alloy Material - When regulating pressure, pull up the rotary knob and rotate clockwise to increase the pressure and rotate anticlockwise to decrease the pressure ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08B3S1WDX | | Best Sellers Rank | #3,392 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Compressed Air Regulators | | Brand | SNS | | Brand Name | SNS | | Customer Reviews | 4.4 out of 5 stars 1,122 Reviews | | Inlet Connection Size | 0.5 Inches | | Inlet Connection Type | National Pipe Tapered | | Manufacturer | China SNS Pneumatic Co.,Ltd | | Manufacturer Part Number | AR4000-N04 | | Material | Aluminum | | Material Type | Aluminum | | Maximum Operating Pressure | 150 Pound per Square Inch | | Maximum Pressure | 150 Pound per Square Inch | | Model Number | AR4000-N04 | | Number of Ports | 2 | | Outlet Connection Size | 0.5 Inches | | Outlet Connection Type | FNPT | | Size | 4000-N04 | | Thread Size | 1/2 inches | | Thread Type | NPT | | Unit Count | 1.0 Count | | Valve Type | Needle Valve | ## Product Details - **Brand:** SNS - **Inlet Connection Size:** 0.5 Inches - **Inlet Connection Type:** National Pipe Tapered - **Manufacturer:** China SNS Pneumatic Co.,Ltd - **Material:** Aluminum - **Maximum Operating Pressure:** 150 Pound per Square Inch - **Number of Ports:** 2 - **Outlet Connection Size:** 0.5 Inches - **Outlet Connection Type:** FNPT ## Images ![SNS AR4000-N04 Female Thread 1/2 NPT Air Pressure Regulator 0-150 PSI Adjustable,Bracket,Gauge - Image 1](https://m.media-amazon.com/images/I/71TlqvYxS5L.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: can this be used for co2?** A: Yes **Q: Wich side is in on the air?** A: The air source is on the left as you face the meter. The flow is left to right. If you look closely at the video, you'll see an arrow on the bottom at the inlet side. **Q: Is this a diaphragm type?** A: Not that I know of! **Q: Can the air pressure be set before air flows?** A: Yes, it can be set before air flows to the output. But the inlet needs to be pressurized to see where it's set as the only indication of the setting is what is read from the gauge. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Gets the job done *by O***O on March 1, 2026* Fixed my compressor's leak problem. Well not 100%, but the remaining leak is very slow and is likely happening elsewhere. I'm good now, because my compressor might self-cycle once every hour as opposed to once every 5-10 minutes. For my occasional use, that's totally acceptable. I did have to dismantle more than I was expecting, because my pancake tank didn't have enough clearance to directly attach this. I had to remove the main assembly and gauge to be able to screw this in. Others commented about a lack of instructions. Mine has an arrow on the back that showed the direction of airflow, and it does not seem to leak air. ### ⭐⭐⭐⭐⭐ Impressive!!! *by D***N on May 4, 2026* This is a solid regulator/filter, it's accurate and easily adjusted. The one thing that I LOVE, LOVE, LOVE, about this regulator is the fact that you can mount the gauge on either side. When I first bought it it hit me. I thought, "Oh no I forgot these always run with the flow left to right so the gauge is going to be backwards!" Luckily because of its design this wasn't an issue. It has a nice deep polycarbonate bowl just like an expensive ½ regulator. As far as catching water it does its job just as it's intended to. One thing I didn't like is the cheap gauge that came on it, so that's one thing I replaced (as seen in video). Overall for the price you can't go wrong. It seems to be durable enough and installation was a breeze. As far as compatibility it was completely compatible. A great purchase for sure! ### ⭐⭐⭐⭐⭐ Has held up well. *by R***D on May 15, 2026* I was a bit leery when purchasing this, however, after fairly long use, it still performs as advertised. ## Frequently Bought Together - SNS AR4000-N04 Female Thread 1/2 NPT Air Pressure Regulator 0-150 PSI Adjustable,Bracket,Gauge - TL TOOLEGIN 1/2" NPT Male x 1/4" NPT Female Brass Bushing Reducer Reducing Pipe Adapter Fitting 5pcs 1200 PSI - SENCTRL 0-160 Psi Glycerin Liquid Filled Air Pressure Gauge, 2.5" Dial Size, 1/4" NPT Lower Mount, Stainless Steel Case, Water Pump, Tire, Large Air Compressor, Well Pump, RV Regulator Pressure Test --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/343584116-sns-ar4000-n04-female-thread-1-2-npt-air-pressure](https://www.desertcart.tn/products/343584116-sns-ar4000-n04-female-thread-1-2-npt-air-pressure) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-26*