Installation Information The following two videos demonstrate how to install Sprinkler Lube 1200 products into your gearbox. Our recommendation is to use the “Top Fill” method utilizing a metered pump. Top Fill Installation https://www.sprinklerlube.com/wp-content/uploads/2022/09/top-installation.mp4Bottom Fill Installationhttps://www.sprinklerlube.com/wp-content/uploads/2022/09/bottom-installation.mp4