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Square Manholes

The Square Manholes provides ease of access to a variety of tank hardware and monitoring equipment.

All Square Manholes

  • 3/8” heavy duty diamond plate lid
  • 16 gauge steel skirt
  • Meets AASHTO H20 wheel 

Loading Locking Vault Manholes

  • Double hinged lid opens and folds back to180°
  • Lock-access lid permanently fastened with anti-theft chain; secured with single pinned bolt