Dometic CT cassette toilet vent button - green, genuine spare part
- Genuine green cassette vent button for Dometic CT cassette toilets. You press it while emptying the cassette so air can enter and the tank drains without splashing.
The green cassette vent button is a genuine Dometic spare part for CT series cassette toilets. It sits on the cassette next to the slider. You press it while emptying, once the drain pipe points downwards, so air enters the tank and the waste flows out evenly.

Key information
- genuine Dometic part
- for Dometic CT toilet cassettes
- green
- shown: button, disc, spring and seal
Before you order
The Dometic CT 4000 manual describes emptying like this: hold the cassette by the handle with one hand and by the slider with the other, and press the vent button once the drain pipe points downwards. A damaged, cracked or stuck button makes emptying difficult. Before ordering, compare your old part and check the toilet model on the data plate.
Related products
- Dometic CT 3000 / CT 4000 cassette slider cover
- Dometic CT cassette upper inlet seal
- lower cassette seal
- Dometic CT telescopic cassette handle
Technical data
| Parameter | Value |
|---|---|
| Manufacturer | Dometic |
| Type | cassette vent button |
| Application | Dometic CT toilet cassettes |
| Colour | green |
| Parts shown | button, disc, spring, seal |
Questions and answers
When is the vent button used?
While emptying the cassette, once the drain pipe points downwards.
How do I check it fits?
Compare it with your old part and check the toilet model on the data plate.
Is it a genuine part?
Yes, it is a Dometic spare part.
Manufacturer
Dometic Germany GmbH, Hollefeldstraße 63, 48282 Emsdetten, Germany.





