Manufactured by Thetford, the economical Activ range has the same advantages as the Thetford Aqua products, use a similar dose, but are effective for a slightly shorter period. Use 70ml per 10 litre of flush tank capacity. Provides a more effective flush and keeps the flush water fresh. Leaves a protective film in the bowl that prevents deposits, ensuring your Camper Van, Caravan, Motorhome, or Camping trips are more hygienic. Shop at IDS Leisure for all your outdoor needs.