For some water spray guns the maximum temperature at which they can be used ranges from +50ºC to +95ºC. The maximum recommended operating temperature of a particular spray gun should not be exceeded. Please note that special precautions must be taken when using them for high-temperature water! Tubes International offers AK-RHP01-R and AK-RHPB1-R water spray guns with PTFE/Air extra insulation of the handle to protect the user from direct contact with hot elements, and with a trigger guard to prevent uncontrolled opening of hot water jet.