Filtered drain valve with backflow prevention and freeze protection

This product is a filtered drain valve designed for plumbing systems to allow controlled drainage when water flow is shut off. It uses a two-stage screening process to help block grit and debris from entering pipes during drainage. The valve is designed to release residual water from the line when the supply is turned off, which supports protection against freezing conditions. It connects to standard threaded pipe fittings and is intended for fixed installation in water lines where drainage is required. The valve is suitable for use in residential or light commercial plumbing applications, including outdoor lines and irrigation-related plumbing setups.