Livewell pump installation

[Cpshelb17]

I busted the housing on my livewell pump while moving my gas tank tank last week so I’m looking to replace it. The one I’m looking at is by attwood and seems to be rated well. The old pump is mounted through the transom and the hose to the livewell  and unit itself are inline with the thru Hull fitting.  The hose and thru Hull fitting are at a 90 degree angle on the new attwood. Would it cause problems if I mounted the pump sideways or should I just buy a different pump? Here’s a picture: