
Bayou Classic HR4B QCC-1 Propane Regulator w/ Hose Type 1 LP Gas Replacement
Part/SKU: HR4B
$132.10
In stock
Available to order: 30.
Enter the total quantity you need. We will confirm availability and a quote before you order.
Request this quantity →REGIONS SUPPLY BUYING GUIDE
A twin-stage unit puts two pressure-reduction stages in one assembly. The model you choose still needs the correct final pressure and capacity for the job.
| Product type | Twin-stage LP gas regulators |
|---|---|
| Part / SKU | LV404B39 |
| Inlet connection | Female POL (CGA 510) |
| Outlet connection | 1/2 in. female NPT |
| Factory delivery | 11 in. w.c. at 100 PSIG inlet |
| Adjustment range | 9–13 in. w.c. |
| Propane vapor capacity | 450,000 BTU/hr at 10 PSIG inlet and 9 in. w.c. delivery |
Service reminder: Keep water and debris out of the vent and use only the vent-piping arrangement allowed for that model. A regulator that has been underwater should be replaced.
Have gas-system installation and service completed by qualified personnel. Use the current instructions for the exact model and the requirements that apply at the installation location.
Explore this product guide · Shop this product group · Ask Regions Supply about this part
Engineered Controls LV404B39 Compact Twin Stage Regulator – F. POL x 1/2″ FNPTThis compact two-stage propane gas regulator is engineered to reduce container pressure to 11” W.C., ideal for residential LP systems, mobile homes, and cottages. With a brown Select finish and a space-saving design, it’s perfect for installations under container hoods and within collar areas.
Inlet: F. POL (CGA 510)Outlet: 1/2″ FNPTFactory Delivery Pressure: 11″ W.C. at 100 PSIG inletOrifice: 7/32″Propane Capacity: 450,000 BTU/hrBonnet Vent Positions: 1st Stage – Left | 2nd Stage – 9 o’clockIntegral relief valve for safetyCompatible with manifold inlet adapters and pigtail systemsUpdated bonnet design with clearly marked model/date codePressure taps on both regulator stages for maintenance and diagnosticsApplications: This regulator is ideal for use in DOT cylinder systems and permanent residential LP gas systems where compact form and reliable pressure regulation are required.
| Part / SKU | LV404B39 |
|---|
Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.
More products in this category. Compare specifications and fit for your application.

Part/SKU: HR4B

Part/SKU: ME990-16-260

Part/SKU: 740741742743744-ds75bw

Part/SKU: 331751