Please allow 6-8 weeks to ship.

LOST HIWAY

Lost Hiway Universal Toilet Box

$ 550.00

COLOR

DARK GREY ULTRA LIGHT GREY TEXTURED MATTE BLACK

Key Features

Universal fit to all campervans and RV's.
Versatility: Compatible with both Dometic and Thetford 5-gallon toilets.
Color: Dark Grey, Ultra Light Grey, and Textured Matte Black colors available
Seamless Integration: Matches the dimensions of Lost Hiway's low fender boxes for a cohesive look in your van build.
Durable Construction: Made from high-quality, lightweight aluminum for long-lasting durability.
Easy Access: Front access door allows convenient operation of the flush handle.
Dimensions: 18''x18''x20''
Made in the USA

Cushion and Toilet sold separately.

Please allow 6-8 weeks to ship.

Vehicle fitment

Product type: Portable toilet or storage system
Vehicle: Camper vans, RVs, trailers, and mobile builds
Summary: Camper vans, RVs, trailers, and mobile builds that need a compatible portable toilet or storage system. Confirm measurements, mounting location, clearances, installation requirements before ordering.

Fitment FAQ

What does this Lost Hiway Universal Toilet Box fit?

This Lost Hiway Universal Toilet Box fits Camper vans, RVs, trailers, and mobile builds.

Is this product vehicle-specific?

This portable toilet or storage system is not tied to one van generation. Fit depends on measurements, installation requirements, and the build layout.

What should I verify before ordering?

Confirm measurements, mounting location, clearances, installation requirements before checkout.

What installation details matter?

Confirm measurements, mounting location, clearances, installation requirements before ordering. Use professional installation when safety-critical, structural, electrical, fuel, water, or suspension work needs to be verified.

Who is this product best for?

This portable toilet or storage system is intended for camper van conversions, RV upgrades, overland builds, and mobile installations where the product specifications match the build.

Campervan HQ fitment guide

Lost Hiway Universal Toilet Box for camper van and RV builds

Lost Hiway Universal Toilet Box supports Camper vans, RVs, trailers, and mobile builds applications where fitment, measurements, installation requirements, and build layout should be confirmed before ordering.

Why choose this product?

Supports camper van, RV, and mobile build planning
Helps confirm measurements, installation needs, and clearances before checkout
Useful for matching the product to the build layout before ordering

Installation context

Confirm measurements and clearances
Review wiring, mounting, sealant, or material requirements where relevant
Use professional installation when the build requires it

Compatibility notes

Camper vans, RVs, trailers, and mobile builds that need a compatible portable toilet or storage system. Confirm measurements, mounting location, clearances, installation requirements before ordering.

Common use cases

Camper van conversions
RV upgrades
Trailer and overland builds

Free shipping to all lower 48 US states!

ALL SALES ARE FINAL - ITEMS ARE MADE TO ORDER - 4-6 WEEK LEAD TIME

Introducing the Lost Hiway Toilet Box (Thetford/Dometic), designed specifically to accommodate either the Dometic or Thetford 5-gallon toilets.

With outer dimensions measuring 18″ tall x 18″ wide x 20″ front to back, this box boasts a sleek design with a front access door for easy flush handle operation. Crafted in the USA from premium lightweight aluminum, it seamlessly integrates into your adventure van build.

Toilet and cushion sold separately.

Manuals

FAQ

Product Specs

Lost Hiway Universal Toilet Box

Dimensions	18″ tall x 18″ wide x 20″ front to back with a front access door for the flush handle.
Material/Finish	High-quality, lightweight aluminum
Color	Ultra Light Grey, Dark Grey, and Textured Matte Black colors available

Lost Hiway Universal Toilet Box

Please allow 6-8 weeks to ship.

Lost Hiway Universal Toilet Box

Key Features

Vehicle fitment

Fitment FAQ