Plasson Threaded Cap, PP, 1/2" to 2" This threaded cap seals off the end of a threaded pipe or fitting. It's available in sizes from 1/2" up to 2", suiting a range of rural and farm pipework. Farmers and contractors use this cap to blank off an unused outlet or close a line for testing. Made from durable polypropylene, it screws on by hand for a quick, secure fit. Features Available in 1/2", 3/4", 1", 1 1/4", 1 1/2" and 2" sizes Rated to PN16 for 1/2" to 1" sizes, PN10 for 1 1/4" to 2" Female thread screws directly onto a male threaded outlet Polypropylene body resists corrosion outdoors Quick to fit and remove by hand A handy fitting for capping off unused threaded outlets around the farm.