<Let-Lok Tube fittings double ferrule> The LET-LOK range of connectors has been developed to fill the rapidly increasing demand for tube fittings suitable for high pressure use in environments such as petrochemical, fluid, power, nuclear, electronic, as well as other major industrial settings. Each one has passed a stringent tolerance test for high pressure, impulse, vibration, vacuum and temperature. The LET-LOK® tube fitting is a mechanism used both to seal and to grip tubing. The mechanical advantage and geometry of this kind of fitting produces a leak-tight assembly. <HTC - HighTech Components> HTC specializes in the design and production of high-quality, specially manufactured valves and fittings for High Purity and Ultra-High Purity applications. HTC is complete line that reflects the company’s deep understanding of the critical requirements of the semiconductor, biotech, and pharmaceutical industries. HTC is a leader in the manufacturing of fittings and valves fo