Pistol Grip Grease Gun 74057Q6 can be used with any 3 ounce Quicksilver grease cartridge. Simply slide the cartridge into the cartridge holder on the bottom of the pistol grip gun. The flex-head feed rod helps place the grease fitting end on even hard to reach zerk fittings on the boat or other vehicles you have. The Quicksilver brand is the leader in delivering uncompromising engine oils, parts and accessories to the marine industry for over 65 years. Quicksilver is the premier supplier of Mercury Marine Original Equipment replacement engine parts, oils, and accessories, but also works to serve all Original Equipment brands in the marine and powersports industries. It has earned a loyal following by providing the highest quality products that are tested through some of the most rigorous environments and testing procedures. No aftermarket company comes close to the level of research and design as Quicksilver; buying Quicksilver is buying performance, protection and peace of mind.