Multi layered sealing structure ensures excellent leak proof, withstands high temperature and pressure, drips and leaks over long term use Crafted from thickened brass with resistance and pressure resistance, ensuring durability and longer service life without rust or cracks Features standard external threads on both ends, available in 4 / 6 inch universally sizes for compatibility with most water pipes, lines, and heating systems Designed with a butterfly handle for effortless switching, providing strong torques, smooth rotation, and quick open close action without sticking Equipped with a reinforced union for easy installation and removal without rotating the entire pipeline, simplifying maintenance and replacement, Manufacturer: TFAOYS