Photo 1 of Powerstone 12 Pack Pumice Stone Toilet Bowl Cleaner - High Density, Sturdy, Fine Grit - A Solution for Hard Water Stains on Toilets, Grills, Tiles, Grout & Pools

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Photo 1 of Powerstone 12 Pack Pumice Stone Toilet Bowl Cleaner - High Density, Sturdy, Fine Grit - A Solution for Hard Water Stains on Toilets, Grills, Tiles, Grout & PoolsPhoto 2 of Powerstone 12 Pack Pumice Stone Toilet Bowl Cleaner - High Density, Sturdy, Fine Grit - A Solution for Hard Water Stains on Toilets, Grills, Tiles, Grout & Pools