40XL with test lever and extension thermostat for installation in hot water outlet within the allowable distance from the top of the tank based on latest ANSI Z21.22.

• 40XL型号安全阀配置测试杆和加长温控器；用于安装在ANSI Z21.；22规定的距离容器顶部范围内的热水器安装孔上。