Oli Expert & Corner Concealed Cistern Outlet Flush Valve — OL0048288
The Oli OL0048288 is an official factory-original dual flush outlet valve assembly engineered specifically for complex built-in systems. Built to service the unique structural requirements of the Oli Expert and Oli Corner concealed in-wall cistern series, this valve restores crisp water delivery. By swapping a failing or lime-scaled mechanism for this genuine unit, you stop phantom toilet runs and ensure your air-driven system achieves a quick seal after every flush cycle.
Identification Guide:
MPN: OL0048288 | Alt Code: OLI 048288 | Compatibility: Expert, Expert Plus, and Corner Concealed Cistern Frames | Actuation Type: Pneumatic Air Control
Key Features
- Integrated Bellows System: Built complete with factory-installed pneumatic bellows blocks for immediate connection to internal air blocks.
- Custom Chassis Profile: Tailored precisely to navigate the unique narrow bends and clearance limits of Corner and Expert frame casings.
- Eco Dual Flushing: Fully adjustable dual overflow sliders allow precise configuration of water delivery volumes for maximum efficiency.
- High-Durability Seals: Fitted with an advanced engineering washer compound built to resist long-term chloramine breakdown and hard water scaling.
Installation Note
Isolate the primary water inlet and empty the tank before beginning maintenance. Access to this mechanism is accomplished directly through the wall inspection window located behind your external flush plate. Carefully slide the old tower free from its bottom seating basket, disconnect the existing air control tubing, and click the new OL0048288 valve downward into position until fully anchored.