THE SJ10 SUMP JET WATER-POWERED BACK-UP SUMP PUMP protects a home’s basement in the event of a power outage. It is powered by the municipal water supply and requires no electricity to operate. It can remove 2 gal. of sump water per 1 gal. used. It is fully automatic and comes pre-assembled. It uses a ¾" NPT water inlet connection.   
Liberty Pumps
CIRCLE 129 on inquiry card