Check the listing for details. BRADLEY S60-003 STOP STRAINER & CHECK VALVE *NEW NEVER USED*. Condition: New – Open box. Listed at 219.99 USD. BRADLEY S60-003 STOP STRAINER AND CHECK VALVE. FOR BRADLEY HAND WASH FOUNTAINS. NEW IN BAG NEVER USED OR INSTALLED . It combines three essential functions in one assembly: shutting off water at the unit, filtering incoming water to remove debris, and preventing reverse flow that can compromise system performance.