Pentair Manifold Diferences

[Steve #1]

I took my Pentair Nautilus apart to clean it and found large cracks in the manifold. Last year I had small cracks that I sealed but obviously it is beyond that now. The part number on the manifold is 192220. I can't find this part anywhere. My local pool store says I need a 192193 (w/o Air Relief Extension) and the measurements look about right. This one has a air vent on it that my original does not have. I'm also finding 192173 which apparently has the air extension.

So the questions are.... Is the 192193 the correct replacement for me? What does the air relief extension do?

Thanks for any input.

 

[pooldv]

Sorry, I don't know the answer but maybe these guys do
Pentair Nautilus Filter Manifold 192193 | Pentair 192193

 

[JamesW]

It looks like the 192193 is the correct manifold. It should come with the air relief screen. The internal air relief helps remove air from the upper part of the filter.