Macnaught offers oil control guns in unmetered and metered options. Digital and mechanical meters are available. Rigid and flexible extensions with automatic non-drip nozzles can be found. All dispensing units come with a latching trigger and are fully serviceable. Used for oil, ATF and antifreeze up to a maximum viscosity of SAE 140. All Macnaught oil control guns come with a fully supported 10-Year Warranty!