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High-Capacity Propane Auto-Changeover Two-Stage Regulator – 400,000 BTU

Mr. Heater F273846 high-capacity two-stage propane regulator automatically switches from an empty propane cylinder to the reserve cylinder. Features a 400,000 BTU maximum capacity, 11″ W.C. pressure setting, dual 1/4″ inverted female flare inlets, 3/8″ female pipe outlet, and top-mounted propane level indicator.

Description

The Mr. Heater F273846 High-Capacity Propane Auto-Changeover Two-Stage Regulator provides dependable propane delivery for RVs, trailers, and other dual-cylinder propane systems.

The automatic changeover design switches propane supply from an empty cylinder to the reserve cylinder, helping maintain continuous fuel flow without manually switching tanks. A propane level indicator located on top of the regulator makes it easy to monitor cylinder status.

This high-capacity two-stage regulator delivers up to 400,000 BTU of propane flow and maintains an 11″ W.C. outlet pressure. It features two 1/4″ inverted female flare inlets and a 3/8″ female pipe outlet.

Specifications

  • Brand: Mr. Heater
  • Manufacturer Part Number: F273846
  • Fuel Type: Propane (LP)
  • Regulator Type: Two-Stage Auto-Changeover
  • Maximum Capacity: 400,000 BTU
  • Outlet Pressure: 11″ W.C.
  • Inlets: (2) 1/4″ Inverted Female Flare
  • Outlet: 3/8″ Female Pipe
  • Propane Level Indicator: Yes – top mounted
  • Automatic Tank Changeover: Yes
  • CSA Certified
  • UPC: 089301994812

Additional information

Weight 2 lbs
Dimensions 9 × 6 × 4 in
Brand

Mr. Heater

Fuel Type

Propane (LP)

Regulator Type

Two-Stage Auto-Changeover

BTU Capacity

400,000 BTU

Outlet Pressure

11" W.C.

Inlet

(2) 1/4" Inverted Female Flare

Outlet

3/8" Female Pipe

Application

RV & Trailer Propane Systems

Propane Level Indicator

Yes

Automatic Changeover

Yes

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