Inspection Chambers (450mm) - Product Review (Video)

When installing a drainage system, choosing the right inspection chamber is key. Here’s a quick breakdown video of our 5 different types of 450mm chambers to help you decide.

450MH1 – Standard Domestic Use

• Includes: Chamber base, 2 risers, polypropylene cover

• Side inlets: 4 x 110mm (2 at 45°, 2 at 90°)

• Depth: 760mm (800mm with cover)

• Cover: 450mm opening, 550mm size, 35KN load (driveway use)

• Best for: Simple domestic drainage setups

450MH160 – 110mm & 160mm Pipes

• Includes: Chamber base, 2 risers, polypropylene cover

• Side inlets: 2 x 160mm (90°), 2 x 110mm (45°)

• Depth: 760mm (800mm with cover)

• Cover: 450mm opening, 550mm size, 35KN load

• Best for: Installations requiring both pipe sizes

D450MH3 – Square Cover Option

• Includes: Chamber base, 2 risers, square polypropylene cover

• Side inlets: 4 x 110mm (2 at 45°, 2 at 90°)

• Depth: 760mm (800mm with cover)

• Cover: 450mm opening, 560mm x 560mm, 35KN load

• Best for: Driveway installations with paving

D450MH5 – Recessed Cover for Paving

• Includes: Chamber base, 2 risers, recessed cover

• Depth: 760mm (820mm with cover)

• Cover: 450mm opening, 580mm x 580mm x 54mm, 5T load

• Best for: Seamless integration into paving/screed

D450MH4 – Deep Recessed Cover

• Includes: Chamber base, 2 risers, recessed cover

• Side inlets: 4 x 110mm (2 at 45°, 2 at 90°)

• Depth: 760mm (860mm with cover)

• Cover: 450mm opening, 580mm x 580mm x 88mm, driveway load

• Best for: Deep paving/slab integration