WALKER MODEL 11401 20,000 GALLON VERTICAL INSULATED SILO TYPE STORAGE TANK S/N VSHT-5713 – NO ALCOVE, SPRAY DEVICE, CIP AND VENT LINES, 3" CLAMP OUTLET, LIQUID LEVEL SHELL ONLY, 2B INTERIOR FINISH, 143" DIA. X 375" OAHT, MFG 1993. (INTERIOR DISTORTION)