The Contracor STC Short Venturi Nozzle is a nozzle with a tungsten carbide core and a durable rubber outer shell. The short 80 mm in length design makes it easier for applications with limited blasting space, at the cost of some performance compared to regular venturi nozzles. With a service life of up to 400 hours, the Contracor STC Short Venturi Nozzle is a great choice for those who demand a good quality low cost short nozzle. Nozzle entry size is 25 mm. The nozzle fits 50 mm thread nozzle holders.