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USABlueBook gauges are suited for use with water, oil, air, gas or other non-corrosive media. They feature a built-in restrictor that reduces the harmful effects of pressure surges and spikes.
Items sold by USABlueBook are intended for use only by professionals in the water and wastewater treatment industry. Many items sold by USABlueBook require supplemental training, licenses or permits for proper use and may be harmful if not used properly.
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