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Ajax Professional Bathroom Power Cleaner removes rust stains, grime, and soap scum.
Ajax Professional Bathroom Power is suitable showers and batns, wash basins, toilets, shower cubicles made from ceramic tiles, glass or plastic, splash backs, glazed tiles, stainless steeel, chrome taps, ceramic floor and wall tiles.
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Half-price only now and then. I bought when it was $5.00 a few months back as I couldn't wait.
Was rated highly by Choice: https://www.ozbargain.com.au/node/380163#comment-5978325
TRIGGERED!!!