This CAMCO 10495 Water Heater Relief Valve is a must-have for any homeowner. With a 3/4" size and 4" probe, it's perfect for ensuring your water heater is functioning properly. Made in the United States, this valve is of the highest quality and easy to install. Whether you're replacing an old valve or installing a new one, this CAMCO valve is the perfect choice. Get yours today and enjoy peace of mind knowing your water heater is protected.