SOG Toilet Ventilation System - Floor Vent


33 reviews
SKU: 37500010001000

Cassette Toilet

The SOG Toilet Ventilation System is an ecological solution for motorhome and caravan toilets. 100% chemical free and 100% odourless. There is no need for the use of chemical additives since the air extraction system naturally breaks down waste in a completely environmentally friendly way through the addition of Charcoal.

This system is available for all popular 12V Thetford and Dometic cassette toilets, as well as for permanent black water tanks. Choose from standard door, roof or floor venting models, all designed to match your existing cassette toilet.

This SOG II floor vent model consists of a replaceable filter cartridge in which there is the fan. This can be placed at any desired distance up to three metres from the toilet and ventilates through any desired point above the floor (e.g. under the bench, in the double floor or in the stowage compartment).

We recommend the floor version for caravans where the toilet service flap or hatch is directly under the awning area. The specially developed filter unit works so efficiently that the extracted odour-laden air is completely neutralised.

*For toilets manufactured in China, please click here for important information*

  • Additives are no longer necessary and optimal decomposition is guaranteed by the increased flow of oxygen
  • The fast and powerful ventilator immediately removes odours by suction
  • No more smells in the vehicle
  • No further problems with the pressure of gases caused by decomposition
  • The power consumption is very low at 0.43 watts
  • Very low noise
  • Flexible installation inside your recreational vehicle
  • Easy to empty cassette
  • The floor vent means no changes to the exterior wall of your recreational vehicle
  • The floor model is also ideal for vehicles where the toilet's service hatch opens out into the awning area.


  • Fan – the heart of the system
  • Adapter parts
  • Floor outlet 
  • Filter cartridge
  • Power to the fan
  • Cable set with switch to supply
  • Complete set of small parts for installation
  • Installation instructions 
How It Works
  1. The ventilator is activated automatically when the toilet valve is opened, creating pressure in the water-tank stopping any odours from being released. 
  2. This creates “suction” at the valve opening, drawing in fresh air through the valve. Odours arising during use are therefore drawn in with the air and directed outside. 
    This downflow acts as a seal and prevents the gases and smells from rising .This means more air (oxygen) is sucked into the cassette with each use. The flushing process also adds water each time.
  3. The ventilation system will then turn off with the closing of the toilet valve but continues to provide permanent aeration – as the oxygen supply – through a pipe or hose connection that is always open to the outside, decomposition process
  4. The decomposition process for waste and toilet paper is accelerated by the increased flow of oxygen so that no additional chemicals are required.

Use & Care:

  • The waste tank should be thoroughly rinsed with clear water and shaken after emptying to avoid deposits. The cassette should then be filled with half a litre of water.
  • Always use normal toilet paper, NOT recycled paper, because special paper does no decompose as well as ordinary, lower-priced toilet paper when oxygen is used.

  • A hose or pipe extension (up to 3m away from the toilet) can be attached both in front of the compact system and to its floor outlet in order to find a suitable position.
  • The cassette is easy to empty, by removing the exhaust hose and using the suitable plug that is supplied with the ventilation system to close the connection that is now open.
  • Filter Dimensions: H:90mm, Ø:110mm
  • Filter Unit with Fan Dimensions : H:160mm