Actually the people you want to call is reeflo pumps. Sequence jettisoned their reeflo division which handles most of their pressure rated pumps for aquarium use.... or something like that. It's a weird thing that happened over there. I want to say the guy's name is Rick that answers the phone... good knowledgeable dude. When find the web site, be prepared, it's awful.
When people think Sequence/Reeflo, they think dart, which is not the right pump for this. Dart (and it's sisters like the barracuda) are not made for pressure but for flow.
For this application, I'd use a Reeflo Wahoo or Marlin. Their head pressure is in tens of feet...