The 209 tournament series 1600gph with 1" bronze intake and 1.1/8 discharge. I know that Ill need 2 to do the same job as 1 reversible one from wake makers but when the WATER SHERIFF is heading my way would be nice to have the sacs bone dry by the time they got close. We surf with 750lbs in corner and the original G3 sac filled same side If not enough people on and always fill the locker sac