In 2012, the manufacturer changed the way Aquaflo pumps are rated. These pumps are now assigned both an operational horsepower (ohp), and a total horsepower (thp) rating. Previous versions of these pumps used only the operational horsepower. If you are replacing an older Aquaflo pump, be sure to match the operational hp rating rather than the total hp.
5034d Aquaflo by Gecko Wet End, Gecko AquaFlo FMCP, 2.0ohp/3.0thp, 1-1/2", 48fr 91040840 601024 In 2012, the manufacturer changed the way Aquaflo pumps are rated. These pumps a
5034C Aquaflo by Gecko Wet End, Gecko AquaFlo FMCP, 1.5ohp/2.0thp, 1-1/2", 48fr 91040820 AQF91040820 601025 In 2012, the manufacturer changed the way Aquaflo pumps are rated. T
5034A Aquaflo by Gecko Wet End, Gecko AquaFlo FMCP, 0.75ohp/1.0thp, 1-1/2", 48fr 91040800 AQF91040800 601027 In 2012, the manufacturer changed the way Aquaflo pumps are rated.