Yeah the SQE is one of those variable speed pumps that are expensive and don't last very long. Any 10 GPM, 1/2 or 3/4 HP pump will do. I like the Grundfos 10S05-9 or the Goulds 10GS05, but they are not much better than a 10 GPM, 1/2 HP you can find at TC or HD.