MASS' tube fittings were developed in response to industry demand for an alternative ultra high quality double ferrule instrumentation grade fitting. All 'MASS1 tube fittings are engineered and manufactured to withstand the severest service conditions while providing the ultimate in sealing capabilities and reliability in varied system services from cryogenic to steam, Vacuum to tubing yield pressures. 'MASS' make single and double compression tube fittings provides leak proof joints at all tubing connection, this eliminates leakage. 'MASS' Needle valve is made from single piece forged body or bar stock construction. 'MASS' instrument Ball valves is very compact and low torque design.