www.pmmag.com/articles/96736-ridgid-professional-pump-line

RIDGID professional pump line
September 25, 2014
RIDGID’s XD professional pumps feature 360° float protection, which reduces the likelihood of float obstructions, and high-efficiency motors, which extend the switch life and reduce power consumption. Pumps have a nonwicking cord to prevent water from entering the motor and a cast-iron body and volute.

The top suction design reduces clogging, eliminates air lock as well as the need to drill weep holes.