Replacement Stop Cap for Sloan® Optima Plus™ flush valves, designed for models RESS-C-1.6, RESS-C-3.5, and RESS-C-4.5. This stop cap features a 1-7/8" outer diameter and is compatible with the 1" H600A/H700A Bak-Chek control stop. Constructed from durable chrome-plated brass, it ensures long-lasting performance and reliability in toilet systems. The package includes a sleeve for easy installation.
