The label on the pump motor says Sta-rite JWPA5FL-2A2, 1.5HP 115V VD 3FT20A
It really just mentions power usage, not flow.
The label on the tank says model PLM100
Max work pressure: 50PSI
FIlter area: 100 sq ft
Max flow rate: 37GPM

This site has a manual for it: http://www.backyardcitypools.com/poo...STA-PLM100.htm