VideoAPG’s HU Hammer Union Pressure Transducer Drop Test Posted on July 23, 2015April 7, 2025 by Mason Parkinson APG is committed to producing quality products. Take a look at the drop test that we put APG’s HU Hammer Union through: PT-500 Re-Usable Protective Cage How to Re-Zero the PT-500 Submersible Pressure Transducer