API Rotor, Shaft and Bearing for Filstar XP XL - XP4 Filters
Ratings & Reviews
Upgrade your XP3
Read the pump upgrade info on the forums and ended up using the XP4 impeller because it was much quieter than the rio upgrade. Gives a nice boost to an already great filter at a low price. Rena flow rates are overstated by more than 100gph and this makes up some of that.