Found these 2 fuel filters in a pile of my dads old parts bin along with a bunch of fuel pumps and carbs. Thinking about using the Klemm one but does anyone know history or specs on them. Do they have a filter inside or is it just a screen? Also found some sort of vacuum tester see pic of MicroTest 1-751.
^^^ That's a dashpot for a carb ... The Airtex looks to be a re-branded Mileage Minder. It's a surge damper, too. Should have a bronze filter, & maybe a magnet in the bottom.
The gl*** bowl style that once on many fuel pumps are hard to find. Guys like me who still use them leave them empty and let the screen be the filter and watch for sediment in the bowl. Many suppliers still have the AC 50’s style inline which has a paper filter. Perhaps one of them may work for you.
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