Dwyer 160-KIT Standard Pitot Tubes 18 to 48 Inch includes 18”, 24”, 36”, and 48” Dwyer Pitot tubes. These pitot tubes are made out of tough and durable stainless steel and are etched with insertion depth graduations in addition to silver soldered connections to help prevent leaks. They feature low sensitivity to misalignment up to 15 degrees, are rated up to 1500°F (815.5°C), and require no calibration due to their ASHRAE tip design.