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Repair and maintain your Krueger Sentry D Series Level Gauges with the At-A-Glance Level Indicator Repair Kit. This essential kit includes everything you need to calibrate and fix minor issues with your gauges, ensuring they continue to function accurately and reliably. The kit includes an inner/outer plastic gauge calibration, nitrile gasket, red indicator, and red plastic nut, all made in the USA by a veteran-owned business. With this repair kit on hand, you can save time and money while keeping your equipment running smoothly, making it ideal for industries that rely on precise level indications such as construction, manufacturing, and chemical processing.