Product Name: Galvanized End Cap
Type: Quick-fit End Cap
Material: Carbon Steel
Size: to Fit 12 Inch Pipe (OD 323.8 mm)
Wall Thickness: 10.31 mm
Surface Treatment: Galvanized
Feature: with Bird Screen & Accessories Set

Source: https://www.landeepipefitting.com/galvanized-end-cap-carbon-steel-12-inch-with-bird-screen.html