The Trane TD1 Ductulator is a precise duct sizing tool designed for HVAC professionals in India. It features a rotating scale with dual sides—English and metric—allowing quick calculation of duct diameters, friction loss, and air velocities. The lightweight plastic construction ensures portability and durability, while the included protective sleeve adheres to ASHRAE recommended velocities for system efficiency. This classic ductulator style simplifies complex calculations, reducing errors in duct system design. Its compact size makes it ideal for on-site use, providing accurate measurements for both round and rectangular ducts. Imported directly from the USA, it guarantees quality and consistent performance, supporting optimal airflow and energy efficiency in HVAC projects across Indian cities. Delivered in 11-13 days with all duties paid, it is a reliable choice for professionals seeking precise duct sizing tools.