The compact unit comprises an 12V DC battery operated pump, meter and hose reel which, when required, can quickly be mounted in the back of a van, pick-up or drop side truck together with an IBC or small demountable tank and deployed for delivery. A 12V battery, which can be trickle charged from the vehicle charging system, provides power for the 35 LPM electric pump unit which is started and stopped by the electric DP main switch. Product quantity is accurately measured by a Legal Metrology India approved EAST-MAN flow meter (IND/09/2004/01) which is fitted with an inlet strainer, air eliminator and NRV .