Reducer Reducer is an irrigation system component that allows two pipes of different diameters to be combined. STF Reducer has high resistance to UV rays, heat and pressure. It is produced from high density polyethylene (HDPE) raw material. Its body and components have been developed for many years of trouble-free use for agricultural irrigation. Technical Specification Code All the data sheets, schematics, manuals, photos and descriptions are for general purpose use only. Please contact nearest STF specialists for further information or technical support. The company reserves the right to change the design of their products without prior notice.