1/2", lead free, water service vacuum relief valve, allows air to enter a closed system to automatically relieve vacuum conditions which could siphon the water from the system & burn out a water heater or collapse a tank, CSA, ANSI & Massachusetts state code listings. The product is manufactured in china. Easy installation and easy handling.
- Durable And Strong
- Csa, Ansi & Massachusetts State Code Listings
- Helps Keep Your Water Heater Long-Lasting
- Brand Name: Watts Brass & Tubular