It can be paired with a metal end toilet connector for ultimate protection and operation. A height-adjustable toilet replacement part is designed to fix leaking, noisy and slow filling toilet valves, in an easy-to-install model. The anti-siphon design 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.