Flow Measuring Instruments

Shop high-quality, precise flow measuring instruments in Zoro's wide selection of test instruments and gauges. Instruments such as water gauges can be used to measure water levels, water pressure, and other liquids inside of tanks and vessels. They're particularly useful for industrial, agricultural, commercial, and residential operations and structures. Our selection also includes premium sight glass flow indicators for measuring liquid flow in systems at a glance. Shop our wide assortment of sizes, connection types, and more to find items that fit your pipes and systems.