Drive Medical Oxygen Regulator for H and M Tanks, 0-15 LPM, CGA540

The Drive Medical Oxygen Regulator is designed for use with large H and M size oxygen cylinders and delivers a precise, adjustable flow rate of 0 to 15 liters per minute. The high-strength, lightweight aluminum alloy body with an all-brass core provides durable, long-term performance in clinical and facility oxygen therapy settings. The CGA540 nut and nipple connection is the standard fitting for H and M cylinders, and the click-style flow selector with laser-etched flow rate markings ensures accurate, easy-to-read adjustments without labels that can wear or peel. A protected contents gauge, ribbed flow selector for improved grip, and Viton rubber yoke seal with brass ring complete the design. Backed by a 6-year warranty.

Key Features

• Compatible with large H and M size oxygen cylinders
• Flow rate: 0–15 LPM, adjustable
• CGA540 nut and nipple connection (standard for H/M cylinders)
• High-strength lightweight aluminum alloy body with all-brass core
• Click-style flow selector for precise, audible flow rate adjustment
• Laser-etched flow rate markings — no labels to wear or peel off
• Protected contents gauge for easy cylinder level monitoring
• Ribbed flow selector for improved grip during adjustment
• Viton rubber yoke seal with brass ring for a secure, leak-resistant connection
• Green finish
• 6-year warranty

Specifications

• Brand: Drive Medical
• SKU: 14005B
• UPC: 822383283241
• Compatible Cylinders: H and M size oxygen tanks
• Flow Rate: 0–15 LPM
• Connection: CGA540 nut and nipple
• Body Material: Aluminum alloy with brass core
• Color: Green
• Warranty: 6 years
• Country of Origin: China

Ideal For

Hospitals, long-term care facilities, and clinical settings that use large H or M size stationary oxygen cylinders for patient oxygen therapy will find this regulator a reliable, high-capacity option capable of delivering up to 15 LPM for patients with higher flow rate requirements. Respiratory therapy departments that maintain oxygen delivery equipment for patients on high-flow supplemental oxygen will appreciate the 6-year warranty, all-brass core construction, and laser-etched flow markings that reduce the risk of misreading flow rates in busy clinical environments. Home oxygen therapy patients who use large stationary cylinders as a primary or backup oxygen source will find the click-style selector and clear flow markings practical for accurate daily use. Durable medical equipment providers stocking replacement regulators for H and M cylinder users will find this a dependable, warranty-backed option for high-flow oxygen delivery applications.

Frequently Asked Questions

What size oxygen cylinders is this regulator compatible with?
This regulator is designed for large H and M size oxygen cylinders with a CGA540 nut and nipple connection. It is not compatible with smaller portable cylinders (such as D or E tanks) that use a CGA870 yoke connection. Always verify your cylinder size and connection type before purchasing a regulator.

What does CGA540 mean?
CGA540 refers to the Compressed Gas Association standard connection type used on large stationary H and M size oxygen cylinders. It uses a nut and nipple (threaded) connection rather than the yoke-style CGA870 connection used on smaller portable cylinders. CGA540 is the standard connection for high-capacity stationary oxygen cylinders in clinical and home settings.

What is the flow rate range of this regulator?
This regulator delivers oxygen flow rates from 0 to 15 liters per minute (LPM) in click-style increments. The higher maximum flow rate compared to portable cylinder regulators makes it appropriate for patients with higher prescribed flow rates or for clinical applications requiring elevated oxygen delivery. If your prescribed flow rate is 8 LPM or less and you use D or E cylinders, a CGA870 regulator may be more appropriate.

How do I know when my oxygen cylinder is running low?
The protected contents gauge on this regulator displays the remaining pressure in the cylinder, which corresponds to the remaining oxygen supply. Monitor the gauge regularly during use and arrange for cylinder replacement or refill before it reaches empty. Consult your oxygen supplier or respiratory therapist for guidance on when to change cylinders based on your prescribed flow rate and usage patterns.