SOG Toliet Ventilation System - Roof Model

Product Code: SOG - Roof

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SOG® - the tried and tested green solution for banishing unpleasant toilet odours 

When it comes to getting rid of unpleasant odours, most mobile toilets are treated with chemical products, many of which are harmful to the environment.

In fact, 90% of all motorhomes and caravans are fitted with mobile toilets that, according to their manufacturers, are designed to be used with chemicals for odour reduction and decomposition. Their waste tanks therefore have to be refilled with chemical products, which normally have a polluting effect, every time they are emptied.

The innovative and environmentally friendly SOG® system finally waves goodbye to horrible odours for good! And what’s more,it does so in an environmentally friendly manner and without any chemicaladditives!

This is made possible by a special high-performance fan that automatically turns on when the toilet's gate valve is opened. The fan creates negative pressure in the waste holding tank and this pressure simply removes unpleasant odours by suction. During this process, the incoming flow of fresh air acts as a seal and fully prevents any unpleasant biogas from escaping from the tank. The system is made even more efficient by active filters made of organic carbon.


Our special roof outlet gives users the option of ventilating our  SOG®systems through the roof. The waste holding tank is connected to the roof outlet by a pipe.

The high-performance fan is installed directly under the roof outlet and provides sufficient negative pressure, even in the case of pipes that are up to three metres long. A gas-tight sanitary hose, a tried and tested product available in caravan accessory shops, is the easiest connection to install when retrofitting a roof ventilation system. The parts supplied are coordinated to fit a sewage pipe system available from specialist camping retailers  (this also applies to the SOG®II model). 


The roof ventilation system is maintenance free because no filter is needed. Given that some aspects of the retrofitting process are extremely complex, this model is mainly installed by manufacturers as original equipment.


Your advantage

·        An elegant solution

·        Easy to integrate into your vehicle's original equipment

·        No maintenance required

·        No changes to your vehicle walls


Content of the SOG® Roof assembly kit: 

·        The fan – the heart of the ventilation system

·        Adapter parts

·        A cable set with a switch for the fan power supply

·        All small parts required for installation

·        Highly sophisticated installation instructions

·        A roof outlet (with sealing)


The SOG Systems type for cassette (Thetford & Dometic)

·        Thetford C200 Cassette - SOG Type B

·        Thetford C400 Cassette - SOG Type D

·        Thetford C250 Cassette - SOG Type F

·        Thetford C500 Cassette - SOG Type G

·        Thetford C223 Cassette - SOG Type H

·        Dometic CT3000/CT4000 - SOG Type 3000A

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