Name: Thinktank Waterless Toilet
Brand: Thinktank
Price: 1179.00 USD

A household style diverting toilet for cabins and tiny homes with a urine drain, the one to pick if guests need to stand to pee.

Price checked October 31, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros

Men can urinate standing and women don’t need to aim, thanks to the trap door diverter
About 50 bowel movements per solids bag, and urine drains away so there is no bottle to carry
Separate intake and exhaust pipes keep it airtight, so it doesn’t pull heated or cooled room air
Six year warranty, the longest here

Cons

How it scores

The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.

Specifications

Capacity
Type	Urine-diverting
Uses per solids bin	50 uses
Urine drain option	Yes
Agitator	No
Power and venting
Power	12V/120V
Vent size	3 in
Build
Seat height	19 in
Dimensions	18 x 23.2 x 19 in
Weight	30 lb
Material	Rotationally molded plastic
Warranty	6 years

For boats and rigs with a tank to plumb urine into: a slim Air Head with no bottle to carry and a five year warranty, at a premium price.

$1,275

For seasonal cabins and garden outbuildings without power: a large capacity, unpowered separating toilet that empties into a composter.

$1,099

For tight van and boat bathrooms that can’t fit a side crank: the smallest footprint here with push-button mixing.

$899.99