American Lube TIM-390-A1 Heavy-Duty Pumpless 24-Gallon Metered Oil DispenserAmerican Lube TIM 390 A1 Heavy Duty "Pumpless" Metered Oil Dispenser 24 gallon capacity. Ideal for use as a synthetic oil dispenser. The unit must be filled with oil and then charged to 100 PSI. The air hose can then be disconnected and the unit will dispense oil remotely. Dispenses approximately 8 gallons on the first charge and the remaining amount on the second charge. Flow rate approximately 2 gallons per minute. Safety pop off valve prevents over