OLI Expert Plus Dual Flush Outlet Valve — 030484
The OLI Expert Plus (030484) is the authentic replacement outlet valve designed for high-performance dual-flush in-wall cisterns. This genuine component is engineered to restore optimal flushing power and water-tight sealing to your system. Constructed from durable, high-grade polymers, it is specifically calibrated for the Expert Plus and OLI74 Plus ranges, ensuring seamless mechanical or pneumatic operation depending on your specific control plate setup.
Identification Guide:
MPN: 030484 | Range: Expert Plus / OLI74 Plus / OLI120 Plus | Type: Dual Flush Outlet Valve | Material: High-Resistance Plastic
Key Features
- Precision Engineering: Designed by OLI to ensure 100% compatibility with Expert Plus cistern internal dimensions.
- Water Efficiency: Supports full and partial flush volumes to help maintain your cistern’s original eco-friendly ratings.
- High-Quality Seal: Features a premium silicone or EPDM washer to prevent leaks and "phantom flushing."
- Direct Replacement: Fits easily into the existing cradle of OLI74 and Expert Plus models without specialized tools.
Installation Note
This valve is the "Outlet" portion and is often replaced when the cistern is constantly running into the pan. We recommend inspecting your existing valve seat for debris before installation. This unit is designed for OLI’s "Plus" range of cisterns and may not be compatible with legacy non-Plus OLI models.



