Ideal for your automotive lubrication needs. Well balanced design offers one-hand operation vs. pump style guns. Chrome finish for long service life. Features an air bleeder valve to eliminate air lock and a positive lock mechanism for easy filling. Includes 3-way fill option for a standard 14 oz (tube) cartridge (not included), pressure fill or bulk fill. Requires 90 PSI min operating pressure. 1/4" NPT inlet.