--- product_id: 603790883 title: "ResOne CGA‑540 Oxygen Cylinder Regulator, Adjustable 0–15 LPM, Aluminum/Brass – MR540‑15B" price: "₩68000" currency: KRW in_stock: true reviews_count: 7 url: https://www.desertcart.kr/products/603790883-resone-cga-540-oxygen-cylinder-regulator-adjustable-0-15-lpm store_origin: KR region: South Korea --- # Compact 6.29×1.38 inches Durable aluminum/brass build Adjustable 0–15 LPM flow ResOne CGA‑540 Oxygen Cylinder Regulator, Adjustable 0–15 LPM, Aluminum/Brass – MR540‑15B **Price:** ₩68000 **Availability:** ✅ In Stock ## Summary > 💨 Master your oxygen flow with precision and style! ## Quick Answers - **What is this?** ResOne CGA‑540 Oxygen Cylinder Regulator, Adjustable 0–15 LPM, Aluminum/Brass – MR540‑15B - **How much does it cost?** ₩68000 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/603790883-resone-cga-540-oxygen-cylinder-regulator-adjustable-0-15-lpm) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Robust brass core and anodized aluminum body engineered for demanding environments. - • **Compact & Portable:** Slim 6.29×1.38 inch design fits seamlessly on any CGA-540 cylinder without bulk. - • **Precision Flow Control:** Click-style dial with 12 preset flow rates for consistent oxygen delivery. - • **Industry-Standard Safety:** Meets ISO10524-1, ASTM G175-03, and CGA E-4 for trusted, reliable performance. - • **Clear Pressure Monitoring:** Large integrated gauge keeps you informed of remaining cylinder pressure at a glance. ## Overview The ResOne CGA-540 Oxygen Cylinder Regulator offers precise, adjustable oxygen flow from 0 to 15 LPM via a user-friendly click-style dial. Its compact 6.29×1.38 inch aluminum and brass construction ensures durability and portability, while the integrated pressure gauge provides real-time monitoring. Engineered to meet rigorous industry standards, this regulator supports up to 3000 PSI inlet pressure, making it a reliable choice for professional and industrial oxygen applications. ## Description This mechanical pressure-reduction device is a passive regulator accessory designed for use with pre-filled oxygen cylinders with CGA-540 valves. It provides adjustable flow settings from 0 to 15 LPM using a click-style dial with preset positions. The durable aluminum/brass construction measures approximately 6.29 × 1.38 inches, offering a compact and reliable solution for controlled flow from standard cylinders. The integrated pressure gauge provides clear visibility of remaining cylinder pressure, and the single‑barb outlet allows easy connection to compatible oxygen tubing. The regulator supports a maximum inlet pressure of 3000 PSI with a 50 PSI outlet, making it suitable for a wide range of cylinder‑based oxygen applications. This model is engineered to meet applicable industry standards, including ISO10524‑1, ASTM G175‑03, and CGA E‑4, ensuring consistent performance and reliable operation in commercial, industrial, and general oxygen‑cylinder environments. Review: Great size & it does what we need it to. - Works great, not complicated. Nice size, accurate. We like it. Review: quality made - Works like a charm on my O2 tank for bait tank ## Features - Easy to Install and Use: This compact oxygen cylinder regulator attaches to any CGA‑540 cylinder using the 1‑1/8" nut. Adjust the flow rate from 0 to 15 LPM with the click‑style dial, connect oxygen tubing to the single‑barb outlet, and monitor remaining cylinder pressure with the large integrated gauge. - Click‑Style Precision: Provides preset flow positions at 0, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 10, and 15 LPM for consistent and repeatable output control. - Compact Size with High‑Pressure Capability: Measures approximately 6.29 × 1.38 inches and is engineered for standard oxygen‑cylinder pressures with a 3000 PSI maximum inlet and 50 PSI outlet. - Durable Aluminum/Brass Construction: Built with a brass core and anodized aluminum body for long‑term reliability in demanding environments. - Built to Industry Standards: Manufactured in accordance with ISO10524‑1, ASTM G175‑03, and CGA E‑4 requirements for oxygen cylinder regulator performance and safety. ## Technical Specifications | Specification | Value | |---------------|-------| | Best Sellers Rank | #141,944 in Health & Household ( See Top 100 in Health & Household ) #235 in Oxygen Accessories | | Customer Reviews | 4.5 out of 5 stars 15 Reviews | ## Images ![ResOne CGA‑540 Oxygen Cylinder Regulator, Adjustable 0–15 LPM, Aluminum/Brass – MR540‑15B - Image 1](https://m.media-amazon.com/images/I/71IkgR0AfQL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great size & it does what we need it to. *by G***D on June 12, 2026* Works great, not complicated. Nice size, accurate. We like it. ### ⭐⭐⭐⭐⭐ quality made *by S***Y on December 4, 2025* Works like a charm on my O2 tank for bait tank ### ⭐⭐⭐⭐ Don't set your expectations too high with these. *by S***N on May 2, 2025* These are cheap, low quality regulators. Don't set your expectations high. I have a few of these and one day I look at one at the gauge broke off. Not sure how, but I'm not too mad because I only spent $30 and it lasted a while. Just be gentle with it, and it will be fine. ## Frequently Bought Together - 15LPM Oxygen Regulator CGA-540, Adjustable Flow 0-15 LPM - ASTM G175-03 - Aluminum/Brass, Max Inlet: 3000 PSI, Outlet: 50 PSI - Compact 1.38 inches X 6.29 inches - AireMed Oxygen Regulator 0-8LPM, CGA-540 Gauge – Brass Sleeve - 12 Preset Flow Settings - Dependable Oxygen Regulator --- ## 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.kr/products/603790883-resone-cga-540-oxygen-cylinder-regulator-adjustable-0-15-lpm](https://www.desertcart.kr/products/603790883-resone-cga-540-oxygen-cylinder-regulator-adjustable-0-15-lpm) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-09-25*