The 4 Lug 4.5mm Low Pressure Manhole Cover is designed and manufactured to comply with the European Standard EN BS 14025, SANS 1518 and the ADR, for the application of transportation of hazardous goods by road. The AMF manhole cover is fitted with a single hinge and secured by four easy fastening eyebolts. Manhole covers can easily be opened to allow for top loading, internal tank cleaning and access to the compartment. The manhole cover is supplied with Hypalon or Viton seals and can be fitted with a large variety of AMF relief valves and vents to suit a wide variety of products.