Pinit BWKABCBX (In-Tank Automatic Bowl Cleaner) SKU BWKABCBX QTY AVAILABLE: 20 $3.03 Quantity -+ Add to Cart Details In-tank cleaner cleans and deodorizes.Prevents scale and mildew buildup.Colors water blue with each flush.Has 22% surfactant formulation.Lasts up to 3... Details Back DetailsIn-tank cleaner cleans and deodorizes.Prevents scale and mildew buildup.Colors water blue with each flush.Has 22% surfactant formulation.Lasts up to 30 days.