The Inspection chamber base has a clear plastic opening, riser and round top cover. It has a 5 Way 110mm stepped design inlet system complete with 3 easy fit bungs to block off unused inlets.The Maximum depth allowed by building regulations is 600mm.


Manufactured by Clark Drain using black polypropylene and EPDM rubber

External dimensions 478mm diameter x 600mm high

Load rating classification of 15kn (pedestrian)

Product weight 6.5kg

Compliant to relevant clause of BS EN 13598-1:2010

Extended frame for levelling to surrounding surfaces of up to 15 degress

Slip-resistant surface tread pattern on cover