The Road Authority

MH Square Frame Base w/ Circular Watertight Cover (401.03)

Manufactured by Sigma Corporation
Brand: Calcutta Ferrous

Categories: 
Drainage and Sewer Works | Maintenance Hole, Catch Basin, Ditch Inlet Units and Valve Chambers | Accessories | Frames and Covers | Gray Cast Iron

Certifications: Accepted for Use

  • Ontario Provincial Standards
    • OPSD 401.030 - Cast Iron, Square Frame With Circular Watertight Cover For Maintenance Holes
  • ASTM International
  • Other Standards

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