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The Dwyer SFI-100-3/8 is an essential tool for monitoring fluid levels in various applications. Its durable bronze body and removable glass window offer clear visibility of your system's flow. With a versatile range of use, this product is perfect for coolant tanks, hydraulic lines, hydraulic tanks, oil reservoirs, and pressure vessels. The device can handle pressures up to 125 psi, making it suitable for gas, liquid, or mixed media systems. Safety tested for your peace of mind, this Sight Flow Indicator offers unmatched reliability and durability at a great value. Take the guesswork out of fluid monitoring with Dwyer's SFI-100-3/8 today!