Duct Entry Options
Chambers can be supplied with the following accessories:

Bellmouth
- Provides the cut end of duct with a smooth finish
- Prevents the duct from pushing into the chamber and restricting accessÂ
- Manufactured in Polypropylene
- Available in a variety of colours and sizes
- Current sizes (to fit 114 mm hole): 54 mm, 96 mm, 110mm

Duct Caps
- Temporary cap for factory-made duct entries
- Manufactured in Polpropylene
- Current sizes (to fit hole): 54 mm, 63 mm, 96 mm, 110 mm, 125 mm

Sand Block
- Bellmouth fitted with foam to allow for smaller ducts or cables to enter the chamber
- Seals against sand and backfill ingress