Used Sparkler pressure leaf filter model 18D6. Filter area 9.2 Sq Ft, 1.35 cu ft of cake. Stainless steel vessel and stack. Asme #86. Vessel rated 100 psi @ 650 degrees F. Top head missing. Spare filter stack available which is a 18S11 17 Sq Ft 1.16 CuFt cake capacity. (NOTE: Top Head missing)