Male BSP / Female BSP Reducing Bush. This fitting is made of polypropylene and boasts excellent mechanical resistance to compression, traction and bending stress in addition to being resistant against corrosion. As a neutral non-toxic material it is suitable for conveying any liquid. Our threaded fittings operate at 80°C working temperature and will work at 10 bar at 20°C. All these fittings are compliant with the UNI ISO 228/1 standard.