Thetford Separation Toilet S220 Ventilator Kit 212480. For the best user experience, an active vent kit can be added to Thetford S220-S and S220-CS separation toilets.Air is ventilated from holding tank area and filtered before it is emitted.The fan is controlled by a button on control panel, which can be toggle between OFF – LOW – HIGH, as indicated by LED’s.The filter box is consumable to be used for both ventilator kits S220 and S260 versions,
