SmellX odor trap for composting toilets
The new SmellX odor seal is screwed onto the urine container and seals it completely airtight with a patented float valve.
This way, no odors from your dry toilet can escape.
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Does the Smell X fit your composting toilet?
Does the Smell X fit your composting toilet?
The SmellX is installed in seconds and fits most dry and compost toilets with wide-neck canisters, e.g. BioTioo, Kildwick, Trelino, Trobolo.
This makes any DIY solution quickly upgradeable.
Already tested with:
Trelino Evo L, M, S | Trelino Origin L.
Trobolo WandaGo, SilvaBlœm.
Product details
Product details
Scope of delivery
Scope of delivery
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Why SmellX – Your Advantages at a Glance
The new odor trap in comparison
The new odor trap replaces the old rubber membrane, which could stick together if used incorrectly and was not always reliably airtight due to its opening. Instead, an integrated floating ball is now used, which automatically and completely seals the tank – without any movable sealing lips. The result: no smell, no splashing, no cleaning effort caused by stuck parts.
How do I clean the SmellX?
The SmellX can be taken apart with just a few simple steps and cleaned as usual – simply under running water or with a mild cleaning agent. All parts are sturdy, easily accessible, and designed for easy maintenance. This keeps everything hygienic – with minimal effort.
Moments from camper life
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FAQ – Frequently Asked Questions about Smell X
How does the Smell X odor trap work?
How does the Smell X odor trap work?
The Smell X replaces conventional odor traps with a patented ball valve. When liquid flows into the canister, it lifts the ball and the urine drains away. Once the flow stops, the ball falls back into its seat by gravity and seals the opening airtight.
Unlike the membrane, which by design never closes 100 percent, the Smell X has no gap through which odor can escape.
Does the Smell X also prevent odor in summer at high temperatures?
Does the Smell X also prevent odor in summer at high temperatures?
Yes, the Smell X reliably prevents urine odor even at high summer temperatures. Since the mechanical ball valve seals airtight, no odor molecules can escape upwards — even if the motorhome or van is parked in the sun all day. Unlike silicone membranes, which absorb odors more quickly due to heat and urine residues, the Smell X remains stable in its function.
How long does the Smell X last?
How long does the Smell X last?
The Smell X is not a wear part and does not need to be replaced regularly.
It is made of dimensionally stable plastic that does not stretch out or stick.
While the usual silicone membrane in composting toilets should be replaced every three months according to the manufacturer, the Smell X lasts permanently — a one-time investment that works for a camper's lifetime.
Is the Smell X easy to install?
Is the Smell X easy to install?
Yes, installing the Smell X is very easy and takes less than 10 seconds. You unscrew the lid of the urine canister, remove the old silicone membrane, and then put the Smell X on instead. You don't need any tools, instructions, or prior knowledge. The Smell X fits the existing canister of your composting toilet without any further adjustments.
Does the Smell X fit if I have a Trelino?
Does the Smell X fit if I have a Trelino?
Yes, the Smell X fits almost every Trelino.
The odor trap is compatible with most dry and compost toilets with wide-neck canisters — including Trelino, BioTioo, Kildwick, and Trobolo.
DIY separation toilets can also be quickly retrofitted with it.
The SmellX has already been officially tested on: Trelino Evo L, Trelino Evo M, Trelino Evo S, Trelino Origin L, as well as Trobolo WandaGo and Trobolo SilvaBlœm.