Product Information Material: De-Zincified Brass Seat: PTFE Female Thread: BSP Working Pressure: 230 PSI Select a Product Part NumberSize VB-J360-0151/2" (15mm) VB-J360-0203/4" (20mm) VB-J360-0251" (25mm) VB-J360-0321-1/4" (32mm) VB-J360-0401-1/2" (40mm) VB-J360-0502" (50mm)