Handy design for storage and use The plunger pump design screws in and locks down for secure storage. It includes two suction tube lengths to fit different height quart bottles, making it versatile for various bottle sizes. Seethrough operation Transparent, clear tube design lets you see the fluid as it is transferred, helping you monitor flow and avoid overfilling. Precise and compatible Delivers 8 cc per pump stroke for controlled transfer. Fits standard quart bottles with a 28 mm bottle cap, ensuring reliable compatibility with common fluid containers. Professionalgrade tool A lubricant fluid transfer pump suitable for the maintenance of your car, truck, RV, boat, motorcycle, and other everyday applications. Built to handle routine lubrication tasks with consistency. Practical use scenarios Transferring transmission fluid from a quart bottle to the vehicle reservoir during maintenance or service. Refilling or topping up lubricant in automobiles such as cars, trucks, RVs, boats, and motorcycles. Use in other everyday lubrication tasks at home or in a workshop, where controlled, visible transfer is beneficial.