Operate your micro oxy-fuel soldering setup safely and reliably using disposable cylinders. The Miller® SMITH Preset Regulators (#249-500B & #249-499B) are factory-calibrated gas pressure regulators designed specifically for disposable fuel and oxygen tanks paired with The Little Torch™ system. Featuring solid brass bodies, color-coded knurled aluminum ON/OFF control knobs, and American standard "B" hose connections, they deliver an optimized, constant operating pressure without the need for manual gauge tuning.
Why Choose Miller® SMITH Preset Regulators
-
Factory Preset Operating Pressure: Eliminates guess-work and constant gauge adjustments; internal diaphragms deliver the ideal gas delivery pressure for Little Torch™ tips right out of the box.
-
Color-Coded Safety Knobs:
-
Red (#249-500B): Designated for Fuel (Propane / Propylene / MAPP®) with standard CGA-600 threading.
-
Green (#249-499B): Designated for Oxygen with safety-dedicated CGA-601 reverse oxygen threading to eliminate cross-gas connection risks.
-
-
Standard USA "B" Hose Outlet (9/16"-18): Direct-fit threaded brass outlet ports mate seamlessly to standard American "B" twin soldering hoses without extra step-down adapters.
-
Direct-Mount Screw Connection: Mounts directly on top of commercially available 14.1 oz. and 16 oz. disposable fuel and oxygen cylinders.
-
Solid Brass Body Durability: Precision-machined solid brass housing with internal safety check valve mechanisms prevents leaks and withstands high workshop demands.
Technical Specifications & Model Comparison Matrix
| Parameter Metric | Fuel Regulator (#249-500B) | Oxygen Regulator (#249-499B) |
| Model Number | #249-500B | #249-499B |
| Color Identification | Anodized Red Knob | Anodized Green Knob |
| Gas Compatibility | Disposable Propane / Propylene / MAPP® | Disposable Oxygen |
| Tank Size Compatibility | 14.1 oz. & 16 oz. Disposable Tanks | 14.1 oz. & 16 oz. Disposable Tanks |
| Inlet Connection Standard | CGA-600 Threaded Inlet | CGA-601 Dedicated Oxygen Inlet |
| Outlet Hose Connection | USA "B" Fitting (9/16"-18 LH, Left-Hand Thread) | USA "B" Fitting (9/16"-18 RH, Right-Hand Thread) |
Free Global Shipping
We process orders within 1-3 business days. Estimated standard international delivery is 6-12 business days.
14-Day Returns
We have a 14-day return policy. Items must be unused, with all original accessories, and in original packaging.
For full details, please refer to our Shipping and Refund policies at the bottom of the page.
