The EvertechPRO 4202790 Refrigerator Inlet Water Valve is a must-have replacement part for your Sub Zero refrigerator. Compatible with models requiring the 819077 or WV2790 valve, this inlet valve ensures a steady flow of water to your ice maker and water dispenser. Crafted with durable materials, it provides reliable performance and a perfect fit. Upgrade your refrigerator's water supply system with this genuine replacement part and enjoy fresh, filtered water at your fingertips. Easy to install, it's an essential component for maintaining your Sub Zero's optimal functionality.