Our Very High Pressure ( VHP) One-Piece Fitting is manufactured from a proprietary PEEK blend (PK) which allows it to be used at significantly higher temperatures (up to 200°C). Our PK material's characteristics allows the one-piece fitting to operate at much higher pressures than conventional PEEK. It has a 1/32 tubing OD and an M4 Coned port configuration. It comes in a 10 pack and an individual headless style.