Product Features
The Groth Model 8200 Roof Manhole Cover is used when quick and easy access is desired. It is generally placed on digester covers or roofs. It is required in most cases by insurance underwriters to be non-sparking and gas tight. The seal is provided by a Buna-N diaphragm and the surface bearing is distributed evenly all around by the design.
8200 - Roof Manhole Cover
Available in aluminum (type 356, 18" - 24" only), carbon steel, stainless steel, and other materials