Advantage Large Cat Over 4kg Save $-89.99 $89.99 | / 6pk / Purple - $89.99 4pk / Purple - $69.99 6pk 4pk Size Purple Colour 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Advantage is a monthly, spot-on treatment that protects your cat from fleas.