Washing Machine Water Mixer Wye allows hot and cold connections to a single water supply. For use as hot or cold water supply lines on household washing machines. 200psi working pressure. 800psi burst-pressure rating. Rated to 190°F. Made from polyester-reinforced EPDM rubber. .75" plated steel female hose thread ends. Made in the USA with polyester-reinforced premium rubber. Washing machine hoses should be replaced every five years.