Duckbill Air Inducer Valve for Upper Supply Pressure‑Assist Toilet Systems Series 503, 503H, and 504, Pack of 24

This duckbill air-inducer valve is a replacement component for pressure‑assist toilet systems that rely on controlled air intake to recharge properly after each flush. Installed within the upper supply assembly, the valve opens and closes to introduce air during the recharge cycle, supporting consistent pressure recovery and dependable flush performance in commercial and residential installations. Supplied as a multi‑piece pack, this valve is intended for maintenance and service professionals responsible for maintaining pressure‑assist systems across a wide range of compatible toilet models. Replacing worn duckbill valves helps prevent incomplete recharging and reduced flush strength, supporting long‑term system reliability in high‑use restroom environments.

• Provided as a multi‑unit pack of 24
• Fits one-piece, two-piece toilet type
• Installs in the upper supply assembly
• Designed to restore consistent air intake
• Opens and closes during system recharge
• Supports proper pressure‑assist operation
• Replacement part for pressure‑assist toilet systems
• Helps maintain a reliable flush system recharge by ensuring correct air flow into the pressure vessel during each refill cycle
• Fits model number: M-101526, M-102540, M-101526-F, M-102540-F, M-101526-F3, M-102540-F3, M-101526-F4, M-102540-F4
• Fits porcelain brands: American Standard , Briggs, Colcermica, Contrac, Corona , Crane Plumbing, Eljer , Exergis, Gerber , Glacier Bay, Kohler , KooHoo, Laufen , Mansfield , Niagara, Orion , Peerless , ProFlo, Sloan, Seasons, St. Thomas Creations, Universal Rundle, Vitra , Vitromex , Vortens/Lamosa , Western , Winfield, Zurn