Nairn Inspection Port 4" Dia (EJ404601)
Nairn Inspection Ports are manufactured to high tolerances using premium materials to provide high strength, durability and watertightness even in the most demanding applications.
All models incorporate O ring seals.
Rims and coloured lids are made from ABS plastic while polycarbonate plastic is used for clear lids to give both high transparency and impact resistance.
- Internal Diameter: 100mm (4")
- External Diameter: 144mm
- Cut-out Diameter: 113mm
- Mount Holes: 5mm counter sunk