manhole covers

GMI Custom Products & Locks

GMI Composite Meter Pit Boxes & Lids

GMI 4000 Composite Manhole Cover - 

GMI 3600 Composite Manhole Cover -

GMI 3200 Composite Manhole Cover & Frame -

 GMI 2600 Composite Manhole Cover  & Frame -

GMI 2400 Composite Manhole Cover & Frame -

GMI 2000-2100 Composite Manhole Cover -

European Standard EN 124 - European Standard: EN-124 for Gully Tops and Manhole Tops for Vehicular and Pedestrian Areas. Proof load & permanent set testing for classes A 15 kN - D 400 kN.

U.S.A. Standard AASHTO M 306-05 - Standard Specification for Drainage, Sewer, Utility, and Related Castings: Proof-Load testing at 2.5 times H-20 & H25.

GMI Powerpoint Presentation - , (power point)

GMI Composite Meter Pit Box & Lid Booklet -

GMI Composite Manhole Cover & Frame Booklet -

GMI General Information