Clark Drain Polypropylene Manhole Cover 450mm x 450mm is a dual locking polypropylene manhole cover and frame with 35kN load rating classification. Fits all major manufacturers inspection chambers.
Clark Drain Polypropylene Manhole Cover 450mm Dia is a dual locking polypropylene manhole cover and frame with 35kN load rating classification. Fits all major manufacturers inspection chambers.