Product review (1 stars): Beware - Be Sure to Double-Check Model Numbers
Not Amazon or Marketplace seller's fault on this one - they would get 5 stars as the vendors for fast delivery.  Manufacturers get a ZERO.  Had to return this item.  Apparently there are a myriad of configurations.  Don't just match the series - match the EXACT model number to the filter housing before buying it!  This one had a lip that prevented the popular filter brand  from lock-connecting, even though the series seemed to match up.  Absolutely aggravating.