Balboa/Vico 1212221 Impeller,Balboa Vico Ultima/Ultra Flo,4.0hp,Black/Green/RedVico/Balboa Ultima/Ultra Flo Pump Impeller Closed face impeller made for the Ultima and Ultra Flo spa pumps by Vico/Balboa. Rated at 4.0hp, it is used in an Ultima and/or Ultra Flo pump wet end, and must be installed on a 4.0hp (or greater) thru bolt motor. Shaft seal sold separately This also works as a Generic Power-Right Pump Impeller Generic, closed face impeller made for the Power-Right 3.0ohp/6.0thp spa pump. Rated at 3.0hp, it is used in the Power-Right 9089X, 9094X, 9121X, PRC504 and PRC505 spa pumps, and must be installed on a 3.0hp (or greater) motor. Shaft seal sold separately