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| Item | Regulator | |
| Type | Single Stage, Heavy Duty | |
| Series | SR450D-540 | |
| Cylinder Gas | Oxygen | |
| CGA Connection Inlet | 540 | |
| CGA Connection Outlet | 9/16"-18 (M) RH | |
| Delivery Pressure Range (PSI) | 5 to 125 | |
| Inlet Gauge (PSI) | 3000 | |
| Gauge Size | 2.5 | |
| Body Dia. (In.) | 3.5 | |
| Overall Length (In.) | 9.0 |
** The "Usually Ships" reflects when an item is generally expected to ship from Grainger based on its stocking location. Real-time availability information will be shown during the checkout process and on the e-mail order confirmation (for U.S. and Puerto Rico - US customers only). Please allow additional delivery time for international orders.
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