The Suttner ST1500 wash gun is probably the best known gun within the Suttner range. With its classic robust design, the ST1500 range of guns has certainly stood the test of time. Made with an impact resistant plastic case, safety locked trigger as well as being made from corrosion resistant materials. This gun has the Suttner freeze stop valve integrated which will actuate when the pressure drops to around 5 bar. These wash guns will work with unloader valves such as the ST261, ST280 and GSVRT3, however they will not work with trapped pressure unloader valves such as the K series from Interpump SKU -10000051.