I bought my two big pumps from Aquatic Ecocystems before they were purchased by PentAir. They were very knowledgeable and helpful to me even though each time I purchased I only wanted one pump each time. They mostly sell to big places but they didn't make me feel like a small fry. I don't know if it's the same there now.
Keep this in mind. You need a high head pump. The larger the diameter of the hose you use the less hard the pump will have to work and the shorter the tank filling time. Most of my tanks are hard plumbed with PVC but for the ones that are not hard plumbed I use 1" hose. 1" is available on line. It ain't cheap but it was worth it to me because I'm dealing with a fish room.
Mama Bear
Im not illiterate...only my phone's auto correct is
Thanks, everyone--much appreciated!