Flagstaff E-Pro versus Outback OBX

Contributor

Tucker Ballister

Favorite Trip

5 Months Solo on the Road

Home Base

Hendersonville, NC

Favorite RV

2008 Fleetwood Bounder

About Contributor

Tucker Ballister is our Technical Content Writer. He’s a lover of the open road and the proud owner of a 2021 Sunlite Classic travel trailer (his 3rd RV to date). Check out more of his RV adventures, gear reviews, and outdoor advice at thebackpackguide.com.

Tried and true or brand new? That’s the headline of the debate for buyers comparing the Forest River Flagstaff E-Pro versus the Keystone Outback OBX. These travel trailers offer lightweight towing, off-grid capability, and comfortable sleeping areas for couples and extended families. 

With Keystone’s introduction of the Outback OBX, many buyers wonder how these new off-grid campers compare to a model dominating this space for years – Forest River’s Flagstaff E-Pro. 

Let’s begin with a side-by-side comparison of the basic specs for these RV models: 

Flagstaff E-Pro versus Outback OBX: 2024 Spec Comparison

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These specs provide an overview of the entire lineup. We’ll go into more detail on each line below. 

Flagstaff E-ProOutback OBX
# of Floorplans132
Length Range12’3” to 21’2”20’4” to 22’1”
Exterior Height Range7’3” to 10’10’9”
Dry Weight Range1,903 to 3,971 pounds3,890 to ~4,300 pounds
CCC* Range687 to 1,442 pounds~1,110 pounds
Sleeping Capacity2 to 55 to 6
LP Capacity40 pounds (2 containers)40  pounds (2 containers)
Fresh Water Capacity20 to 31 gallons37 gallons
Gray Water Capacity6 to 39 gallons30 gallons
Black Water Capacity0 to 27 gallons30 gallons

*CCC = Cargo Carrying Capacity

As the newcomer, the Keystone Outback OBX lineup currently features two bunkhouse floorplans. The main difference in floorplan between the 17BH and 18BHS is the addition of a single slide-out in the 18BHS, expanding the living area and sleeping capacity. 

As the longstanding industry favorite, the Forest River Flagstaff E-Pro lineup features 13 floorplans with front dinette, rear dinette, twin bed, bunkhouse, front kitchen, rear bathroom, front Murphy bed, and micro camper layouts. Due to available space, some of the smaller floorplans may not offer all the features and amenities you’ll find in the larger models. 

So, a significant advantage for someone shopping for the OBX and E-Pro is the considerably more extensive selection from Flagstaff. But do the general features of the OBX outperform those of the E-Pro?

Flagstaff E-Pro versus Outback OBX: 2024 Feature Comparison

Because they’re designed for boondocking adventures, the Outback OBX and Flagstaff E-Pro are both feature-laden. Forest River and Keystone offer optional packages to expand your trailer’s off-grid capability further. 

To make the comparison more manageable, we’ll highlight the features of these two models side-by-side: 

Construction Features

Let’s start with construction elements. Notice the similarities and differences in the design and build of these two off-grid campers.  

Flagstaff E-ProOutback OBX
Lippert FrameNORCO NXG Frame
Dexter Torflex® Torsion Axles with Aluminum WheelsDexter Torflex® Torsion Axles with Aluminum Wheels
15” Mud Rover Radial Tires with Lift Kit14” Radial Tires
6-Side Aluminum Cage Construction6-Side Aluminum Cage Construction
⅝” Tongue and Groove Plywood Flooring (with ½” OSB in the 12S)Hyperdeck® High-Performance Water-Resistant Flooring
Laminated Clay with Alloy Band Fiberglass SidewallsPinch-rolled Laminated Gel-Coated Fiberglass Exterior
Block Foam InsulationBlock Foam Insulation
Interior Azdel PanelingInterior Luann Paneling
Heated Holding Tanks (N/A 12S)Holding Tank Heating Pads
2” Rear Hitch Receiver2” Rear Hitch Receiver
Heated and Enclosed Underbelly


Notice the Flagstaff E-Pro offers a slightly larger tire and interior Azdel paneling, which many tout as more resistant to mold and decay if water does permeate the fiberglass exterior.

Conversely, we like the Hyperdeck® flooring in the OBX, which is lighter, less likely to degrade, and more water-resistant, showing that the designers were well aware that owners would likely be traipsing in from all sorts of wet and dirty adventures.

Exterior Features

Conduct your virtual RV walk-around as you compare and contrast the exterior features of these lightweight travel trailers: 

Flagstaff E-ProOutback OBX
Tinted Bonded Frameless WindowsAcrylic Euro Double-Paned Windows
Outside Griddle with LP HookupOutside Griddle with LP Hookup
Fixed Roof Ladder (N/A 12S)Telescoping Roof Ladder with Bracket Attachment
Outside ShowerOutside Shower
Power Awning with LED LightingPower Awning with LED Lighting
Black Tank Flush (N/A 15TB, 15RD, 12S)Black Tank Flush
Outdoor SpeakerOutdoor Speaker
Cargo Rack Prep on Rear Bumper


Again, lots of similarities across these towables. Nothing too surprising here. But we should point out those double-paned windows in the OBX, which are latched to swing open for added ventilation. The cargo rack prep is nice, too, but we might be slightly suspicious of anything that risks affecting the OBX’s most valuable asset: its light weight.

The roof access also differs, and I’d give the E-Pro the nod for having a fixed ladder because it eliminates the need to store a telescoping ladder between uses. The downside is a more extensive and expensive repair if the ladder is damaged. 

Interior Features

Let’s move to the interior to compare and contrast popular interior features between the E-Pro and the OBX:

Flagstaff E-ProOutback OBX
Barreled Ceiling (N/A 12S and 14D)Flat Ceiling
Energy-Efficient LED Puck LightingEnergy-Efficient LED Strip Lighting with Dimmer Control
20K BTU Furnace (11K Under Bunk in 12S)20K BTU Furnace
12V RefrigeratorSolar-compatible 12V Refrigerator
13.5K BTU Roof A/C Solar-compatible 18K BTU Roof A/C with Variable Compressor
Quick-Recovery Gas/Electric Water Heater (On-Demand in the 12S)Girard® On-Demand Tankless Water Heater
12V Smart TV with Stereo (N/A 12S)Solar-compatible 12V Smart TV
Standard Roller ShadesIntegrated Double Shades with Blackout Curtain
Microwave (Convection Microwave in 12S, 15TB, 15FBS, 15RD, and 19FDS)Microwave
Oven (N/A 19FDS, 15FBS, 15TB, 15RD, 12S)17” Oven
Recessed Cooktop with Flush-Mount Cover (15TB, 15FBS, 15RD, 19FDS); Gas Range (15FD, 19BH, 19FBS, 19FD, 20BHS, 20FBS, and 20FKS) Three-Burner Gas Range with Low-Profile Hood Vent
Shower Miser Water Saver (N/A 12S)

The noticeable interior differences begin with the barreled ceiling in the E-Pro, which provides more headroom for taller campers. Forest River also caters to boondockers in more arid climates with the addition of the Shower Miser system to reduce water waste. 

The OBX excels by incorporating solar compatibility into nearly the entire electrical system. Soft-start technology allows the A/C to use only battery power, and the variable compressor improves energy efficiency when running. While a soft-start A/C is an optional upgrade for the E-Pro, Keystone made it a standard feature in the Outback OBX.

Hitch & Towing Features

Compare these towing features in your Flagstaff E-Pro versus Outback OBX debate:

Flagstaff E-ProOutback OBX
Power Tongue JackPower Tongue Jack
TST Tire Pressure Monitoring SystemLippert Tire Linc® Tire Pressure and Temperature Monitoring System
Backup Camera PrepBackup Camera Prep
Full-Size Spare Tire with CarrierFull-Size Spare Tire Mounted Underneath

There’s not much difference between the towing features for these two off-grid campers, aside from the different tire pressure monitoring system (TPMS) manufacturers. You can learn more about these systems using the links below: 

Electrical and Solar Features

The length of your off-grid stays often depends on your camper’s ability to harness and store solar energy. So, let’s compare the electrical and solar features of the E-Pro versus the OBX: 

Flagstaff E-ProOutback OBX
200-Watt Roof Solar Panel220-Watt Roof Solar Panel
1,800-Watt Inverter (1,000-Watt in 12S and 14D) with 30A Charge Controller2,000-Watt Inverter with 30A Charge Controller
Bluetooth System Control Panel (N/A 12S)Zamp Solar Sidewall Charge Port with 15A Solar Charging Circuit
AIR 360+ Omnidirectional Antenna with Wi-Fi PrepAIR 360+ Omnidirectional Antenna with Wi-Fi Prep

Note that Keystone publishes comprehensive online materials explaining the ins and outs of their SolarFlex® packages. Learn more about SolarFlex® to understand whether the standard Protect 220 or the upgraded Discover 440I package best suits your boondocking needs.

Optional Packages

Here are the optional upgrades Forest River and Keystone are offering for these respective models: 

Flagstaff E-ProOutback OBX
Second (and/or Third) 200-Watt Roof Solar PanelSecond 220-watt Roof Solar Panel
460Ah Mastervolt Lithium BatteryTwo 100Ah Dragonfly Energy Lithium Batteries
3,000-Watt/160A Inverter/Charger with Safety Disconnect Switch2,000-Watt Inverter with Built-in Transfer Switch
Tongue-Mounted Bike RackY-Design Front Hitch Bike Rack
Slide Topper (Only on Slide-out Equipped Models)Backup Camera
11K BTU Soft-Start Coleman Mach A/CNORCO BAL Independent Suspension System
Side Solar Plug-in for Portable PanelsKnobby Mud Tires
Two Smart Remotes for System Control and Monitoring

Both trailers offer upgraded solar packages and a tongue-mounted bike rack. Keystone’s remaining upgrades focus on improving your visibility (backup camera) and off-road performance (suspension and tires). Forest River’s upgrades provide exterior protection (slide topper), easier use (smart remotes), and off-grid camping comfort (soft-start A/C). 

Which Is Right For You?

There are many similarities between the Outback OBX and Flagstaff E-Pro. We hope our lists above have pointed out the key differences, but here’s a synopsis of the key benefits of each model: 

Forest River Flagstaff E-Pro

  • More Layout Choices. 13 floorplans versus 2, currently.
  • Higher Ceilings. Barreled ceiling with higher interior height (minus the micro campers).
  • Fixed Roof Access. No need to store a telescoping ladder between uses.

Keystone Outback OBX

  • Solar-Compatible A/C. Soft-start unit is standard versus an upgrade.
  • Increased Standard Solar Capture. 220 watts versus 200 standard, plus the sidewall charge port for compatibility with portable panels.
  • Customizable Lighting. LED strip lighting can be dimmed to your preference.

Which Gets Your Vote?

Let us know which travel trailer you’d prefer:

Where To Find These Lightweight Off-Grid Campers

Camping World dealership with American flag
Photo by Camping World

Once you understand the differences and similarities between the Flagstaff E-Pro and the Outback OBX, we recommend feeling those differences in person. You can find these models at Camping World dealerships nationwide, with availability changing based on your location and inventory at specific dealerships. 

Use these links and input your zip code to locate available models near you. Then reach out to schedule a time to tour both and see which is your perfect off-grid camper!


If you’re interested in comparing the Flagstaff E-Pro or Outback OBX to other lightweight campers, here are a few additional resources: 

Which would you vote for? The Flagstaff E-Pro or the Outback OBX? Let us know in the comments below!

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