HC 20" Pressure/Vacuum Tank Hatch

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Knappco's HC 20” Pressure / Vacuum Tank Hatch for bulk storage tanks, silos, grain elevators, baghouse for cement, food products & industrial products. Available Models:
  • HC1110 20" Pressure/Vacuum Tank Hatch, Cast Aluminum Base & Cover, 2 oz. Pressure/0.5 oz. Vacuum
  • HC1111 20" Pressure/Vacuum Tank Hatch, Cast Aluminum Base & Cover, 4 oz. Pressure/0.5 oz. Vacuum
  • HC1112 20" Pressure/Vacuum Tank Hatch, Cast Aluminum Base & Cover, 5 oz. Pressure/0.5 oz. Vacuum
  • HC1113 20" Pressure/Vacuum Tank Hatch, Cast Aluminum Base & Cover, 6 oz. Pressure/0.5 oz. Vacuum
  • HC1114 20" Pressure/Vacuum Tank Hatch, Cast Aluminum Base & Cover, 8 oz. Pressure/0.5 oz. Vacuum
  • HC1120 20" Pressure/Vacuum Tank Hatch, Cast Aluminum Base & Cover, 1 oz. Pressure/0.5 oz. Vacuum