MH Square Frame w/ Circular Cover - C81/150 (401.04)

Manhole (Maintenance Hole) raised frame with round cover.

Categories:

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

Certifications: CSA Group

Ontario Provincial Standards
- OPSD 401.040 - Cast Iron, Raised Square Frame With Circular Closed Or Open Cover For Maintenance Holes
- OPSS 1850 - Frames, Grates, Covers and Gratings
- OPSS 407 - Maintenance Hole, Catch Basin, Ditch Inlet and Valve Chamber Installation
- OPSS 408 - Adjusting or Rebuilding Maintenance Holes, Catch Basins, Ditch Inlets, and Valve Chambers
Canadian Standards Association
- CAN/CSA-B70.1-03 (R2013) - Frames and Covers for Maintenance Holes and Catchbasins