Changing out the sea strainer gaskets

I have a Groco SA1000 sea water strainer mounted between the sea chest thru hull valve and the engine water pump. When I ran water through it this week it was showing water leaks out of the top through the wing nut. I bought a gasket service kit from fisheries yesterday and took it apart today. The wing nut was stuck and once I carefully freed that I found that the top cover wouldn’t release. The old gasket was sort of holding it in place so I used my trusty mallet and screwdriver combo to gently pop it apart. The new gasket is a much different design as you can see in the pictures. Hopefully that does the trick!