RALSTON-QTHA-4TB0-1/2" tube fitting x male QT no check valve, bras

The Ralston QTHA-4TB0 pressure fitting is an excellent solution for connecting to tube fittings for pressure calibration, gas sampling, pressure reading and testing. A unique design that seals on an o-ring to prevent damage to tube fittings. Make and remake hundreds of times without over-tightening tube fittings. Make a bubble-tight connection to any Swagelok, Parker, Hoke, SSP, Tylok or equivalent tube fitting without a wrench.