30×72 resin tank 39×48 brine tank 15 cubic feet of high capacity resin 100 lbs 1/4×1/8 gravel support bed 250 lbs 1/2×1/4 gravel support bed 75/105 gpm min/max service flow rate 25 gpm backwash flow rate Space Required 73x39x92 (LxWxH)

36×72 resin tank 50×60 brine tank 20 cubic feet of high capacity resin 150 lbs 1/4×1/8 gravel support bed 350 lbs 1/2×1/4 gravel support bed 100/140 gpm min/max service flow rate 35 gpm backwash flow rate Space Required 82x42x95 (LxWxH)

36×72 resin tank 50×60 brine tank 20 cubic feet of high capacity resin 150 lbs 1/4×1/8 gravel support bed 350 lbs 1/2×1/4 gravel support bed 80/110 gpm min/max service flow rate 35 gpm backwash flow rate Space Required 82x42x93 (LxWxH)

42×72 resin tank 50×60 brine tank 30 cubic feet of high capacity resin 250 lbs 1/4×1/8 gravel support bed 450 lbs 1/2×1/4 gravel support bed 85/120 gpm min/max service flow rate 50 gpm backwash flow rate Space Required 96x50x96 (LxWxH)