Cast iron, 1/3 hp, mechanical float switch. The standard for basements. Pumps 2580 gph at 5 ft. head
½ hp version of the popular M53. Pumps 4320 gph at 5 ft. head
Model 137
½ hp, high volume version of M98. Pumps 6240 gph at 5 ft. head. Due to the height of this pump you cannot use an UltraSump Battery backup system
It’s an upgraded version of the M53 while offering a much stronger warranty and beefier internal parts.
5 year warranty
It’s an upgraded version of the M98 while offering a much stronger warranty and beefier internal parts.
5 year warranty
Zoeller Pump Company discusses the differences between vortex impellers and other impellers