1" BSP ISO25 ISO A Stainless Steel Probe - PAVX.2525.003 ISO 7241-1 A Occlusion: poppet Locking: radial balls Material: stainless steel AISI 316 Available Threads: BSP, NPT Standard Seals: FKM Optional Seals: FFKM, EPDM Connection Under Pressure: not allowed