The hozon siphon mixer proportions at the rate of 1 gallon of concentrate to 16 gallons of water. One gallon of concentrate is dispensed in 3 to 5 minutes. Heavy duty brass construction. Hozon needs 35 pressure per square inch minimum hozon placed between two hoses. The hozon should be no more than fifty feet from the nozzle end to work correctly. If more than fifty feet of hose is used the hozon can be connected between two sections of hose. Hooks up between your faucet and garden hose and draws fertilizer concentrate up a small hose to be diluted into your hose water, fertilizing evenly while you water your plants.