CES-3900E-450-HWBP, Single Water HWBP Conditioner, 450000 grains/tank @ 15lbs. salt/cu.ft. capacity, 15 cu.ft. resin volume, 100 gpm continuous @15psi (1 bar), 129 gpm intermittent @25psi (1.7 bar), 3 inch pipe size, 1458 ship weight, 4378 operating weight (EV998033)