Roundup Weedkiller Concentrate 540ml SKU: 225506 MODEL: RUC540 Error. try again later You've successfully joined the club $ 39 .98 each Mitre 10 Variants Use to kill quick growing annual weeds and tough perennial weeds to the roots, seeing results within days. Roundup is rainfast in 2 hours, non residual and breaks down rapidly in the soil. Features and benefits Kills weeds and grasses to the roots. Child resistant safety nozzle. Covers area of up to 540m2 equivalent to 2 tennis courts.