Choose from our selection of sight glass, including sights, liquid-level indicators, and more. Same and Next Day Delivery.

Choose from our selection of sight tubes, including oil-level indicators, tubular gauge glass, and more. Same and Next Day Delivery.

Monitor liquid movement, color, and clarity in tube systems— these sights have barbed fittings that slide into soft plastic and rubber tubing. They have a clear body and an indicator that moves when flow is present, so you can visually confirm flow from a distance.

Choose from our selection of diesel fuel sight glass, including over 425 products in a wide range of styles and sizes. Same and Next Day Delivery.

Choose from our selection of hydraulic fluid sight glass, including sights, liquid-level indicators, and more. Same and Next Day Delivery.

Choose from our selection of water sight glass, including sights, liquid-level indicators, and more. Same and Next Day Delivery.

Choose from our selection of sight glass valves, including level indicators, build-your-own level indicators, and more. Same and Next Day Delivery.

Choose from our selection of glass tube cutters, including over 200 products in a wide range of styles and sizes. Same and Next Day Delivery.

Choose from our selection of sight glass gaskets in a wide range of styles and sizes. Same and Next Day Delivery.

Choose from our selection of metric sight glass, including sights, liquid-level indicators, and more. Same and Next Day Delivery.