Description Kohler San Rafael Toilet Flush Valve Replacement Restore your toilet’s performance with the Kohler San Rafael Flush Valve Replacement Kit, specifically engineered for Kohler one‑piece toilets. Built with premium materials, this replacement part ensures durability, efficiency, and long‑lasting reliability. Product Features Compatible with Kohler San Rafael Model K‑3384 – precision fit for Kohler one‑piece toilets only Official Kohler Part #1016123 – trusted replacement part for guaranteed performance Durable Construction – made with premium materials to extend product longevity 2.5‑Inch Flush Hole Design – optimized for powerful water release and effective flushing 7‑Inch Tall Flush Valve – engineered for proper fit and consistent performance Enhanced Reliability – prevents leaks, improves flush efficiency, and keeps your toilet running like new