Fits any tank with 870 CGA fitting</br>Adjustable flow rate of 0-15 liters per minute</br>Compact size measures only 4.5" x 2.5" x 1.25"</br>Includes heavy-duty plastic cylinder wrench</br>Single barb outlet?? 50psi?? P/N - LXO2R-M</br></br>Product Description</br></br>Constant flow oxygen regulator made for any tank with an 870 CGA fitting like in the main product picture. Flow rate is user adjustable from 0 to 15 liters per minute. Includes cylinder wrench for turning on and off the flow of oxygen from the cylinder. Brand: Lightning X Products?? Inc - FDA Owner/Operator #10051897</br><br/>http://www.amazon.com/gp/product/B01GGL08C6