404610 Black 5" Inspection Port

Nairn inspection ports are Australian Made and manufactured to high tolerances using premium materials to provide high strength, durability and watertightness even in the most demanding applications. In short, total product integrity. All models incorporate ‘O' ring seals. In the 4", 5" and 6" models the seal is located in the rim and is made from EPDM rubber for superior weathering characteristics. 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. EPDM rubber is used for superior weathering characteristics. All rims have wide caulking flanges.