Upgrade your patio or indoor heater with this high - quality replacement parts kit. The kit includes a thermocouple and an FD4 dump switch. The thermocouple features a universal size and is made of solid copper and brass, with a high - temperature resistance protection cover on the port. The dump switch is crafted from durable ABS material. Installation is a breeze: connect the probe to the ignition device, the thermocouple to the valve, and the other 2 ports to the dump switch, all without the need for additional tools. This safety - focused kit is designed to automatically shut off the heater when it tilts or falls, preventing gas leakage. It's suitable for a wide range of heaters, including propane, patio, and thermoelectric gas heaters, and can be used both indoors and outdoors, such as in gardens. With these replacement parts, you can enjoy a warm and safe environment during the cold winter months, making it a must - have for your heater maintenance. Color: Black.