+3 Powder Brightener by Dynachem | 2 lb Jar 1767 $9.95 Out of stock Quantity: 1 Add to Bag Product Details UPC: no Brand: GLOBAL_METHODS Dynachem Powder Brightener Powder Brightener - Oxidizer, Urine RemovalAggressive 100% Oxygen-Release powder (percarbonate) for removal of difficult stains. Will also brighten up gray traffic lane areas and dirty grout lines. Save this product for later Favorite