KN 20" Non-Pressure Manhole Covers

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Knappco's KN 20” Non-Pressure Manhole for storage silos, industrial & storage tanks. Available Models:
  • KN1110 24" Non-Pressure Manhole Cover Carbon Steel, Hardware & Weld Ring w/Buna Gasket
  • KN2210 24" Non-Pressure Manhole Cover SS304, Hardware & Weld Ring w/Buna Gasket
  • KN3310 24" Non-Pressure Manhole Cover SS316, Hardware & Weld Ring w/Buna Gasket