An Industrial Textile & Ducting Manufacturer for over 40 years. Explore our flexible ducting used with a wide range of blowers, fans, heaters, and ventilation equipment. NTI Global provides labor saving solutions for air-transfer(ducting) and building transitions. In addition to the durable, warranty backed VentFlex and Hitex ducting brands, the VersaDOCK and VersaDOOR provide rapid and safe pass-throughs for ducting, power cable, and chiller hose. No plywood. No carpentry. No non-routine tasks.