B BOX 1 is Advanced RV’s first design on a Mercedes Sprinter cab chassis. The design connects a hyper-insulated fiberglass composite box to the Sprinter’s front cab and equips it with off-grid, four-season systems such as heated tank enclosures, a recycle shower system, and lithium battery pack.

The B Box fits within the physical footprint of our van-chassis motorhomes, while offering more interior living space. The fiberglass box allows for maximum insulation and heating/cooling efficiency.

If you’re interested in B BOX 1, we recommend you check out the extended walkthrough video we posted to our YouTube channel, then call or send an online inquiry.


  • 2019 Mercedes Sprinter 2WD cab chassis, 170″ wheelbase
  • Three Year Advanced RV Warranty
  • Seven Year Extended Mercedes Benz Warranty
  • 2,974 miles
  • Closed cell urethane foam + fiberglass box providing R14 insulating value
  • 22’11” total length
  • 9.5″ ground clearance
  • 80″ interior height
  • 48V 15.2 Kilowatt hour lithium battery system, charged by heavy duty second alternator
  • Supplemental recycle shower system involving series of filters and UV light. Allows for longer and more frequent showers.
  • 48V ducted split air conditioning system
  • Diesel Fired Heat, with auxiliary heat exchanger.
  • On-demand hot water
  • Zoned floor heat
  • Heated tank enclosures
  • 50 gallon freshwater tank
  • 27.5 gallon gray tank, 27.5 gallon black tank
  • E&P Hydraulic Leveling with weighing/telescoping jacks
  • VB Air Suspension with custom-tuned Fox shocks
  • Isotherm fridge/freezer
  • Panasonic microwave
  • RGB Lighting
  • Silverleaf Integrated Control Touchscreen, New 2.0 Version
  • Premium Sonos sound system
  • Vizio television
  • Interior Plumbing
  • Electric Sofa Bed
  • CompuStar Security with Drone
  • Alcoa Wheels
  • Keypad Entry
  • Multiplex Lighting Switches
  • Split Door Bathroom
  • Shore Power Alarm