THIS IS A NEW AIR DOG FUEL AIR SEPARATOR , PART #A3SPBT403. The AirDog® FPII-150 4G uses the AirDog® FF200-MG-6 or equivalent fuel filter and WS200-WS or equivalent water separator. For maximum performance, use of the PureFlowT WS200-WS and FF200-MG-6 are recommended, as the filters were designed for use with the AirDog® system. This item […]