Thetford B-Fresh Blue 2 Ltr

B-Fresh Blue

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Additive for chemical drain of toilet tanks, such as Porta Potti and cassette toilets. 

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B-fresh blue stops unpleasant smells, reduces build up of gas and breaks down toilet waste. Add 75ml of b-fresh blue to your toilet waste tank for every 10 litres of capacity. Then add 2-3 litres of fresh water. Empty at least every 3 days.

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Pink B-Fresh also available!