This Drayton 779-3 valve body is a must-have for those who are looking to upgrade their hot water systems. Compatible with the Drayton MA1 and ZA5 actuators, this valve body ensures smooth and efficient water flow throughout your home. Made from high-quality materials, this valve body is built to last and withstand the test of time. Ideal for standard water heaters, this valve body is a reliable addition to any heating system. With a 28mm size and three port design, it ensures optimal performance and hassle-free installation. This Drayton 779-3 valve body is perfect for those who demand quality and efficiency from their water heating systems.