1" NPT ISO19 VFH1 Probe - VFH1.2525.013 Snap-Tite 75 Occlusion: poppet Locking: screw Material: steel Steel Finishing: Zn-Fe (Cr III) Available Threads: NPT Standard Seals: NBR Optional Seals: FKM, EPDM Connection Under Pressure: allowed (both male or female side) Max Residual Pressure: 100 bar Wing style screw to connect, 5,000 psi / 350 bar working pressure, Heavy duty design, High flow rate, Heavy duty acme threads. VFH1 series has an universal design that can be used in any industry, Used frequently in oilfield applications, Applications needing high working pressures and high flow rates, Oilfield services such as coiled tubing units, snubbing units, power swivels and much more.