I was working on a repair job today on a Toro system and ran across the toro 300 series (Stream Rotor). 2 had stopped rotating and one got hit probably by mower or edger at one time (not our company, really!) anyway I don't even carry toro stuff in my van... Are these things still even made? Local Ewing had only 15 in stock...unknown if they could order more (not that I needed that many). Is the XP300 the replacement? these discontinued?