Hello,
I can't compare, when I got my pool it came with the floating weir. It does the job, I have a 2 speed pump and it runs 90% on low, and it works. The floating weir part creates the "surface current", and the basket catches the floating debris. It's pretty efficient.
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You'll need to check the opening size to make sure the basket fits. The solid part is the floating weir it rides in the basket. The part numbers cross reference to the part that was specified in the other post. Look at the bottom of the web page that the links are on.
The depth of the skimmer need to be deeper than 7 3/4" and the opening across where the basket sits, should be round and larger than 7 1/2" and smaller than 8 7/16".
Depending on the amount of debris you get in your pool (leaves/twings) will determine how often you'll need to empty the basket.
Hope that helps. I you have any other questions don't hesitate to ask.