Designed to give easy, accurate & even application of water, insecticides, pesticides, fungicides & water-soluble fertilisers. We stock the very best knapsack sprayers from Enduramaxx. This is a 16ltr backpack sprayer model. This is the smallest Enduramaxx sprayer. The Enduramaxx 16 Litre Knapsack sprayer is ideal for applying herbicides, pesticides, fertilisers or liquid ice melts. Knapsack sprayers are suitable when the terrain is wet or hilly or for areas that are hard to reach.