Rajeev Metal Industries manufactures Air Pumps with Pressure Gauge. Rajeev Metal Industries is an ISO 9001: 2000 certified company. The Air Pumps with Pressure Gauge fall under the category of Foot Pumps & Accessories. These are portable foot operated single barrels with heavy duty portable air pumps. They consist of 3 inches diameter. Twin connectors are designed for the inflation of twin tyres but are ideal for all types of valves. Pressure gauge of air water oil etc. Is available with 4 inches and 3/8 inches respectively.