CLEAN belongs to bipyridylium group. CLEAN is a non-selective, fast acting, contact herbicide, absorbed by the foliage. CLEAN acts in the presence of light to dessicate the green parts of weed plant with which it comes into contact. It does not affect the brown mature stem and bark of tree. The product is very fast in action and controls weeds within 48 hours. CLEAN is available in the pack sizes of 250ml, 500ml, 1ltr and 5ltrs and 20ltrs. .