A Brass Vent with brass flap with two screw securing holes.
This is available in two options, fitted with a flap or mesh, this flap alternative is more suited were the vent is used to supply fresh air into a sewage system. The flaps allows air in to prevent loss of water in WC bowls without letting the smells out.
This vent grille is suitable for fitting to the cast iron body of a vent similar to the CELL4 Cast Iron Cellar/Sewar Vent.
Size of the vent grille is 135mm wide x 100mm high, the hole centres are 115mm apart, 45mm up from the base.