The question that seems to popup a lot is whether or not to get a lift pump. What happens if the lift pump fails, am I stuck? Can I get filters anywhere or is it online order only? Why spend the money? How long will the pump last before it needs to be replaced? Do I need a sump installed on my tank if I get a lift pump?
Here is Airdog comparison with FASS
Here is FASS comparison with AirDog
I personally owned both the Air Dog on my 2005 GMC LLY and the FASS