This 40mm x 25mm Reducer Socket (Slip x Slip) steps down between two pipe sizes using solvent-weld sockets at each end. Unlike a reducer bushing, this fitting provides a socket-in-socket configuration ideal where a flush or low-profile join is needed. Manufactured to AS/NZS 1477 for pressure service in water supply, irrigation, and industrial applications. Compatible with the full pressure fittings range.