Osma 250mm diameter Shallow Inspection Chamber range for use to a maximum invert depth of 0.6m (adoptable and non-adoptable)
Square cover and adjustable frame for use with the 250mm Shallow Inspection Chamber (4D960)
For non-trafficked/landscaped locations
Sealed
Can be used internally
For loadings up to 10kN (1 tonne) when supported by a concrete collar