Levelux Oil Reservoirs provide illumination of the liquid level. An motion activated LED light not only enhances visibility of the fluid level, but also draws attention to the reservoir. It helps operators or maintenance individuals monitor the contents and avoid depleting the oil. Levelux is particularly useful in dimly lit areas or where the line of sight is partially obstructed.Reservoirs are also called oil cups and use gravity to dispense liquid. They are designed to serve as a central reservoir of an oiling system. This oiler features an acrylic reservoir with lightweight and durable polypropylene endplates. It allows maximum fluid visibility by eliminating the center post common to many reservoirs.The reservoir design utilizes a permanent bond that eliminates gaskets. A Viton o-ring creates a seal between the reservoir and fitting. A Buna o-ring is located between the fitting and mounting shank. The aluminum mounting shank has a 1/2" male NPT outlet to mount directly to a pipe.The diameter of the reservoir is 3 1/2" and the overall height of the unit is 8 1/8". This lubricator is suitable for temperatures up to 160° F.Additional shutoff and sight feed valves are needed for the regulation of liquid flow (see Oil Flow Control Valves).The LED is powered by two button cell batteries installed at the factory. The light activates for a few seconds each time motion is detected. Replacement batteries are commonly available as part numbers SP357 or SR44W. They may also be purchased from Oil-Rite as part number A7180-1. The batteries are accessed by unscrewing the knurled cap from the lighting unit (no tools are required). Use a magnet or rolled up tape to lift the two batteries out. Insert the new batteries with the positive end down. Hand tighten the knurled cap.Levelux can be factory installed on any reservoir or oiler 9 oz. and larger that uses polypropylene endplates. They are labeled throughout the website as "clear view" style. Consult with Technical Sales for availability. This is a new product and not all items are yet listed on the website.NOTE: This reservoir is not for use with isopropyl alcohol. Polycarbonate reservoirs or reservoirs with aluminum endplates and Viton seals are recommended for use with isopropyl alcohol.