MH Square Frame Base w/ Circular Cover - Model 401.01 (MH-5001, MH-5002)
Manufactured by Star® Pipe Canada Inc.
Manhole, square frame base with circular opening and cover, for drainage and sewer works, catch basin, ditch inlet units and valve chambers. Star® item codes GRFRDF305A, GRFRDF305B.
Drainage and Sewer Works | Maintenance Hole, Catch Basin, Ditch Inlet Units and Valve Chambers | Accessories | Frames and Covers | Gray Cast Iron
Ontario Provincial Standards
OPSD 401.010 - Cast Iron, 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
American Society for Testing and Materials