DPS X-Stream Range™ Duty pepper sprays consist of 2, 3, 4 and 5 oz. units, which are the most common among law enforcement agencies. What makes our units so different for the competition is we call it the "DPS Range for Safety Advantage™". Our 4 oz stream unit fires an amazing 20 feet!. The 2oz stream unit fires 15-17 feet'. This is nearly twice the distance of most defense sprays. That distance can save your life! This is exactly why DPS is quickly becoming the spray of choice among law enforcement agencies and correctional facilities in the US and abroad.