The Delta 3/4″ Vacuum Breaker is a plumbing device designed to prevent backflow in water supply systems. It features a 3/4″ size, which is commonly used in various plumbing applications to protect against siphonage and backflow of water contaminants. Vacuum breakers like the Delta 32W600 are essential components in outdoor faucets, irrigation systems, and other plumbing fixtures where maintaining water quality and preventing contamination are critical. They work by allowing air to enter the water line when pressure drops, thereby preventing the reverse flow of water and ensuring safe and reliable water supply.