For standard & HE machines. Whitest whites. Kills 99.9% of common household germs (Staphylococcus aureus, streptococcus pyogenes, salmonella enterica, esherichia coli 0157:H7 and influenza A2). Kills methicillin resistant staphylococcus aureus (MRSA). Not harmful to septic systems. Contains no phosphorus.