<https://www.ttseries.com/product/poddymeter-series-6000wfv-water-manometer/#product>
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"The Poddymeter Series 6000WFV Water Manometer is suitable for differential pressure measurement across balancing valves, orifice plates, chillers etc in waterflow systems. Flow rate can be related to differential pressure using individual valve charts/KV values.\r\n\r\nAll units are leak tested to 10 Bar and calibrated before dispatch. The unit comes complete with a calibration certificate, pair of binder adaptors and a padded carry case. The instrument can be used in the carry case, the strap having a quick release break in the middle so it can be used as a hanging strap or loop around pipe work. There is a back pocket arrangement for storage of the nylon tubing and female adaptors."
<https://www.ttseries.com/product/poddymeter-series-6000wfv-water-manometer/>