This inspection chamber has a diameter of 450mm and is 960mm deep. It features a main channel of 110mm and has an addidtional 2 x 110mm inlets at 45 degrees.Our inspection chambers allow access to drain and sewer systems for testing, inspection, maintenance and cleaning. These actions can be performed from the surface and should not require entrance into the chamber itself. As part of Turtle Enviroand#039;s orange range, this chamber is designed for use in foul and surface water systems.KEY FEATURES andamp; BENEFITS OF THIS PRODUCTQuick and simple installation.Arrives factory assembled in one piece.Fits all 110mm drainage pipes.Lightweight and requires no specialist equipment to lift.Chambers 1500mm and deeper are supplied with standard restriction capGranular backfill.Complies with EN 13598-2 (2009).4 x 110mm inlets.NOTE: This product is not supplied with a lid, which must be purchased separately. For this chamber, we would recommend either our 450mm square to round cover or 450mm chamber circular access cover.