Duo XL
An extended van for couples. Seats and sleeps two, with a full galley, more room to move, and optional shower.
- Built on Sprinter 170 or Transit 148 Extended - more room to spread out
- Full galley with sink, fridge, and cooktop
- Bench shower and toilet options
- Versabed expandable sleeping system
- Ample storage
A typical Sprinter or Transit van costs around $72,000.
What's included & upgradable
Seating
Included
- —
Available upgrades
Captain swivel seat (passenger side)
Captain swivel seat (driver side)
Jump seat between front seats for 3rd passenger
Sleeping
Included
Bed: near queen, extendible to near king
Custom cut memory foam mattress (6")
Available upgrades
Upgrade bed to bamboo
Pop-top
Kitchen
Included
60" + 40" galley hand crafted bamboo counter top, sink and faucet
Fridge/freezer (80L)
Post mounted table
Available upgrades
Upgrade to birch butcherblock countertop (from bamboo)
Upgrade to walnut butcherblock countertop (from bamboo)
Upgrade to large fridge/freezer (130L)
Induction stove (kept in drawer)
Single burner induction stove set into counter top
Two burner induction stove set into counter top
Microwave built in
Fold out table
Shower and Toilet
Included
Storage bench (passenger side)
Storage bench (driver's side)
20 gallons fresh water (in wheel well box)
Gray water system (5 gal under sink)
Available upgrades
Toilet bench upgrade (custom designed to fit toilet)
Bench shower (upgrade from storage bench, requires undermounted grey water tank)
Bench and back cushion set
Exterior shower (curtain and plumbing)
Propane heater for exterior shower
Electric water heater (4 gal)
Drinking water filter
Undermount gray water system (required for bench shower)
Gray water heating blanket
Cassette toilet (Dometic)
Separating toilet (Joolca)
Dry flush toilet (Modiwell)
Dry flush toilet (Laveo)
Storage
Included
Proprietary wheel well boxes (housing electrical and water systems)
Full length upper cabinet (driver side)
Available upgrades
Upper cabinet (passenger side)
Headliner shelf
Slide out tray in the garage (black hex)
L-track in the garage (per run)
Interior & Style
Included
Coindot floor
Prefinished birch walls and ceiling, and upholstered pillars
Available upgrades
Upgrade floor (from coindot)
Upgrade ceiling (from pre-finished birch)
Upgrade walls (from pre-finished birch)
Upgrade door jambs
Upgrade cabinet colors
Bug screens for rear doors
Bug screen for sliding door
Window covers (set of 7)
Climate
Included
4-season insulation (synthetic)
Vent fan (front position)
Available upgrades
4-Season insulation (upgrade to wool)
Extra vent fan (rear position)
AC Velit 2000R (requires 10kWh or more, rear location)
Wall fan by bed
Gas or diesel cabin heater
Gas or diesel cabin heater (high output)
Lizard skin thermal barrier
Sound deadening
Electricity
Included
5kWh lithium smart electrical system (300W solar, shore power, alternator charging)
Lighting package (ceiling, upper cabinet LEDs, reading lamp with USB)
Outlet package (USB, 12V, and 110V)
Available upgrades
Upgrade to 10kWh system
Upgrade to 15kWh system
Equipment to upgrade alternator charging by 50%
Secondary alternator charging system (UPGRADE OFFERING TO 4X CHARGING COMING SOON!)
Windows & Flares
Included
Screened awning window (driver side)
Available upgrades
Fixed glass window in sliding door
Bunk windows (set of 2)
Fixed rear door windows (set of 2)
Flarespace flares with slider window (passenger side)
Flarespace flares with slider window (driver side)
Adventure Gear
Included
- —
Available upgrades
Awning (Fiamma)
Side steps
Ladder and tire carrier
Roof rack
Side ladder
Starlink Mini Roam - roof mounted
WeBoost cell signal booster
Van Compass suspension upgrade
Offroad wheel and tire package
Front bumper
Winch
Safety
Included
Fire extinguisher
Smoke detector
Available upgrades
- —
Why the DUO XL is your ultimate adventure van
Tailored comfort for every journey
The DUO XL features a near-queen bed extendable to near-king size. The custom-cut memory foam mattress ensures restful sleep, while the modular layout adapts to your needs with unmatched versatility.
Functional and stylish interior
Step into a beautifully crafted space with prefinished birch walls, handcrafted countertops, and a 60" galley complete with a sink and fridge. Ample storage, optional upgrades, and smart features for added convenience.
Advanced climate and power solutions
Enjoy year-round adventures with 4-season insulation, a lithium smart electrical system, and solar charging. Upgradable options like a 9,000 BTU AC and diesel heater keep you comfortable on or off the grid.
Adventure-ready versatility
From exterior showers and bench shower systems to garage storage for your gear, the DUO XL is built for real adventures. Add a WeBoost signal booster, Starlink, or suspension upgrades for the ultimate setup.
Customer Reviews
What Our Customers Say
Frequently asked questions
What's included in the base DUO XL conversion?
How long does a DUO XL build take?
Can I customize the features and layout?
What warranty do you offer?
Do you offer financing?
Do I need to provide the base vehicle?
What's the difference between DUO models?
Ready to Start Your Build?
Our team in Boulder is ready to help you design the perfect van for your lifestyle.
Or call us at (303) 414-6834 · info@thevansmith.com

