The Rossmont Riser is a radical new pump which on the surface looks pretty standard-issue, but beneath the skin hides some exciting new technology. The Rossmont Riser is a great standalone AC pump with a decent flow curve that starts maxes out at 850 gallons per hour with no head height, and still a respectable 430 gph … Continue reading Rossmont Riser Is The World’s First AC Controllable Return Pump!