Rittenhouse is offering the Fertil backpack granular applicator for the dispensing of fertilizers. Adjustments can be made to regulate the amount of product dispensed between 2-25 grams. The 19 liter hopper is made from durable molded plastic and the wand is made of sturdy PVC with stainless steel components. The flexible hose that feeds the wand from the hopper can be cut and shortened to suit each individual operator. Up to 1,500 plants can be treated per hour.