Again, thanks to everyone for their responses. Waterbear, the Pentair system looks promising and with one filter - much cheaper! Sorry to be a pain, but i did not locate anythiing on converting the Jacuzzi manifold (currently inplace) to something that can take the Pentair center core and filter. Do you have any advice/tips on this? The Sta-Rite specifically targeted conversion, so this seemed easy to do. Since I will be doing this myself, anything you can offer would be greatly appreciated!

=========================================

Okay - being a real pest here - but I want to get this solved. I was able to locate some of the old style (my current manifold configuration) tri-clops 450 replacement filters online. This is one step down from what I currently have, but would be capable of handling 150 sq. ft. Do you think I could just order those - since they are about $150 cheaper and 150 sq. ft. should be enough capacity? The only dimension that seems off on them is the length at 28.875 compared to 34.875.