Reactor, 18 gallon (70 liter), 316 stainless steel, manufactured by Precision Stainless. Unit is jacketed rated for 45 PSI at 392 deg. F, FV internal at 15 PSI. Unit has bolt on top with (5) 1-1/2" inlet; (1) 4" center inlet and (1) 4" side inlet. Unit has 1" inlet/outlet on jacket, and 1-1/2" center bottom discharge. Unit manufactured in 1997, national board 7209, serial number 5209-1.