Used to buy them at Autozone, they quit selling them a few years back, maybe they are rebranded or something, I dunno.. all I know is the one I had to replace this last time WAS an Airtex unit and the failure was that little rubber hose.
Bought the new Delphi unit from Napa, cost is alittle more, but I don't care at this point, I am seriously getting pretty fed up with the cheap sh!t being sold through these Walmart style auto parts stores. I rarely go into an Autozoneor even Checker (OReilys) now.. Usually always a Napa.