Thermowells for temperature instruments are recommended for all process systems where pressure, velocity or viscous, abrasive and corrosive materials are present individually or in combination. A properly selected thermowell will protect the temperature instrument from possible damage resulting from these process variables. Furthermore, a thermowell permits removal of the temperature instrument for replacements, repair or testing without effecting the process media or the system. Features: Made of 201 stainless steel, durable and long service life.Works nicely to replace a needle thermometer in brew kettle. No bubbles, no pinhole and other blemishes. The inlet accepts 1/2 inch male pipe thread.A quick fit thermowell protects your thermometer from possible damage.Specifications:Material: Stainless steel 201Color: SilverInternal Thread: 1/2"NPTExternal Thread: 1/2"NPTLength: 12.1cm / 4.76"Hexagonal Size: 2.3cm / 0.9" Rod Diameter: 1.3cm / 0.51" Wall Thickness: 0.1cm / 0.04"Weight: 84g(approx.) Package Includes:1 x Thermowell Note:1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 1Made of 201 stainless steel, durable and long service life 2Works nicely to replace a needle thermometer in brew kettle 3No bubbles, no pinhole and other blemishes 4The inlet accepts 1/2 inch male pipe thread 5 A quick fit thermowell protects your thermometer from possible damage