The MV6400 is designed for topping-off fluid reservoirs including master cylinders, gearboxes, transmissions, power steering reservoirs, etc. Its convenient size and 5� long hose with dispensing wand and flow control valve make it ideal for accessing hard to reach reservoirs and fill plugs. For transmission refill and pressure bleeding applications, the MV6400 is compatible with a wide selection of Mityvac ATF and pressure bleed adapters.