Suttner ST-2600 Pressure Washer Spray Guns. The Suttner ST2600 range of guns are based on the best selling ST2300 guns, but with the added advantage of being fitted with the LTF (Low Triger Force) trigger system. The LTF system has a 90% less holding force and a 40% less trigger pulling force, than the standard market wash guns.  Robust and ergonomic design, coupled with impressive maximum flow rates and pressures, means that this gun is suitable for all but the heaviest of duty tasks. Maximum Pressure - 310 Bar. Maximum Flow - 45 Lpm. Maximum Temperature - 150 °C. Inlet - Rear.