The Reliance RWC MK1 2 Piece Multibloc Inlet Control Valve is a high-quality component designed for indoor use in storage tank water heaters. Made from durable brass, this valve offers reliable and efficient performance with an energy efficiency rating of A. Suitable for use up to 3/5 bar pressure, this product from Reliance is a key part of any heating and water system in the home. Its 2 piece design makes installation and maintenance easier, providing a dependable solution for your heating needs.