250mm diameter x 600mm deep, level invert inspection chamber with square cover. The base has 4 number ring seal sockets to accept 110mm (4") drain pipe or fitting, 3 number inlets and 1 number outlet. Cut riser to desired depth. Not suitable for rodding. Maximum depth allowed by building regulations 600mm.
The square cover is manufactured from polypropylene and fixed to the frame via 4 number screws. Load tested to 3.5 tonne. The cover measures 435mm square.