sedra 5000 same as 7000?

[foreverfortune]

ok picked myself up a 7000, it is identical to the 5000 i have, even the impeller is the same size, just need to pick up a needle wheel modified one. from OA

only problem i have is the output union on my pump is glued on and cant be taken off. the intake has a volute that can be interchanged. anyone know where i might find this particular union that euro reef uses on their RC135 skimmers?

i have the old style union anyone know where i might find them locally? thanks