RECKITTS CROWN BLUE SQUARES - Wisdom Products
Bluing Laundry Supplies Bath Products > Bluing Laundry Supplies . Additional Views. reckitts crown blue squares. Item#: 79368AP. Imported bluing from France. Reckitt's Crown Blue is the best and safest way to keep white fabrics a sparkling clean white. Crown blue can be used in hot or cold water.