The Everpure FXB-FVKIT is a 3/4" flush valve kit designed specifically for use with FX-B big bowl water filtration systems (model 160-52914). This essential accessory ensures optimal performance and longevity of your filtration system by facilitating efficient flushing and maintenance. Constructed for durability and reliability, the FXB Flush Valve Kit helps maintain water quality and system efficiency, making it a vital component for any FX-B setup.