I have what I believe to be a Jacuzzi J 270, model year is 2006.

I'm trying to get replacement filters for it. the filter inside of it is marked as 2540-381, but all the other filters I can see with that designation are threaded. The intake on my model does not appear to be threaded, but I don't know if that intake is original or modified?

I need a 2540-281 with a flat pvc 'male' end, I think? My local store isn't a Jacuzzi dealer.

Also, on the jets. The largest replacement jet face I can find is the 2540-431, but there are at least three jets larger than that one on my tub, one at one of the seats and two at the bottom. What the hell size of jet is that?

I can take photos of whatever will be useful.