Inspection Ports 4" Nairn White or Black
Nairn inspection ports are manufactured to high tolerances and all models incorporate "O" ring seals to ensure durability and water tightness even in the most demanding applications. These ports have threaded lids.
The seal is located in the rim and is made from EPDM rubber for superior weathering characteristics.
The wide rims and lids are made from ABS plastic.
4" ports with 100mm internal diameter and 114mm cutout
Black or white from drop down menu