The top selling toilet fill valve in the world, now available with a more durable brass shank. The Fluidmaster 400A Universal Toilet Fill Valve with Brass Shank comes with a heavy-duty brass shank that won’t crack, corrode or strip. It can be paired with a metal end toilet connector for ultimate protection, and operation. A height adjustable toilet replacement part designed to fix leaking, noisy and slow-filling toilet valves, in an easy-to-install model. The anti-siphon design eliminates fresh water supply contamination, is code approved and efficiently uses water. The 400A with brass shank is a trusted and durable toilet fill valve, consisting of corrosion-resistant materials combined with simple installation. Fluidmaster is the trusted brand for replacement fill valves and all your toilet part needs. Upgrade your toilet’s fill performance with this quiet, yet powerful toilet tank fill valve. The Fluidmaster 400A with Brass Shank is a quick and easy replacement toilet fill valve that solves common toilet problems.