Thetford Aqua Kem Blue Sachets

These Thetford tabs provide a highly-effective additive for the waste holding tank. Breaks down waste into liquid and prevents unpleasant odours. Each package comes with 15 sachets Remains effective after freezing and thawing Only one sachet is required per 20 litre holding tank capacity Easy to use: sachets completely dissolve in water and are highly concentrated Suitable for winter camping and one dose lasts 4 to 5 days with average use.