Stilmas Water Softener, Model 682, (4) tanks. Stilmas Tank 1, S/N A - 3307, year built 1986, National Board 21, Max allowable working pressure shell side 87 psi at 302 °F, Dimensions, 40 in. diameter x 88 H. Manhole on side 18 in. Stilmas Tank 2, S/N 37491B, year built 1986, National Board 19, Max allowable pressure shell side is 87 psi at 302 °F, Dimensions 28 in. diameter x 88 in. H at the bottom has a 3 in. pipe with a 6 in. flange. Stilmas Tank 3, storage tank, inside dimensions 31 in. diameter x 51 in. H Stilmas Tank 4, Max allowable pressure shell side is 87 psi at 302 °F, Dimensions 28 in diameter x 88 in. H at the bottom has a 3 in. pipe with a 6 in. flange. (18) ITT Grinell Air Motors, all with S/N 337129, 6 of them have 4 in. inlet and outlet, 12 of them have 6 in. inlet and 6 in. outlet. Grundfos Pump, type CR32-2-2-U-G-A-E-EUUE, Model A96425921 P20102US514, 3,450 rpm, 7.5 hp, The motor that drives the pump is a Baldor Industrial Motor, Cat #85.600017, spec#3611302W38561, 7.5 hp, 208/230/460 volt, 19/17.2/8.6 amp, 3,450 rpm. Overall dimensions 152 in. L x 80 in. W x 140 in. H