Check the listing for details. 1 Pc XFITTING Water Hammer Arrestor Valve, 1/2" Pex x 3/4" MHT, Blue. Condition: New. Listed at 15.99 USD. The XFITTING Premium Washing Machine Outlet Stop Valve is designed for PEX B crimp plumbing systems, providing secure, leak-free connections for washing machine installations. With a 1/2" PEX B crimp connection and 3/4" MHT (Male Hose Thread), this valve is built for ease of installation. Features a copper hammer arrestor to prevent water hammer and reduce noise Blue handle allows for smooth and reliable shutoff control Constructed from durable brass for long-lasting performance Suitable for residential and commercial applications Designed for secure and leak-free connections This premium valve is a reliable choice for any washing machine installation, offering protection and performance to keep your plumbing system in top condition.