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Thetford Cassette Tank Cleaner 1 litreA powerful fluid for periodical cleaning and maintenance. Cassette Tank Cleaner easily removes stubborn calcium deposits that can form on the moving parts and walls of the waste-holding tank. By far the best waste-holding tank cleaning agentProlongs tank lifeNo scrubbing!Removing deposits was never so easyLeaves behind a pleasant, clean scentUse 2 to 3 times per year
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