Used 2800L (740 gal) Mueller "f" tank. 316 stainless inner shell, Dual 304 jackets, 2" insulation, 304 stainless cladding. Tank MAWP - 60psi @ 350F Jacket MAW - 100psi @ 350F The tank bottom actuated valve was updated/replaced by mueller in 1993 with Saunders 70v61-315-p4 tbv Have drawings from mueller. Includes lightnin vektor VKS37 agitator. Serial# R0037042201. Does not have motor.