![QTHA-TEVR-HC](http://www.ptsinstruments.com/cdn/shop/products/item-56d7757dd9c09_large.jpg?v=1594052622)
QTHA-TEVR-HC
Ralston Instruments QTHA-TEVR-HC
In-line fine adjust vernier piston - male Quick-test x female Quick-test, brass.
Connect one end to a Quick-test hose and the other to the process connection then turn the knob to control the pressure
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