Brass air pressure pump for fuel tank pressurisation etc. The tubular body has a flange 90mm dia (undrilled) for fixing unit on the vehicle. All brass construction T grip handle, shaft and seal carrier. O ring seal. Supplied with solder type fittings for 1/4" or 5/16" (please specify) copper pipe. The unit has an in-built non return valve to prevent back suction. Body approx 260mm long x 40mm diameter.