Pressure Rating: 10 Bar, 145 PSI Connection Type: Female BSP thread to male BSP thread Certification: Watermark Certificate AS/NZS 4020 (Potable / drinking water) 100mm (4 inch) x 50mm (2 inch) BSP threaded reducing bush Philmac threaded fittings are manufactured from high quality materials that ensure a strong connection for many years High UV resistant to ensure long term performance even in direct sunlight Tapered thread to maximize sealing performance Tips Apply thread tape to male end of threaded fittings (see thread tape instructions below) Tighten fitting using multi grips (or similar)