5-Pack: Dudley Hydroflo Cistern Inlet Valve Diaphragm Washers — Revised Blue
This 5-piece Bulk Pack of Genuine Dudley Diaphragm Washers is the ultimate maintenance solution for properties using Hydroflo or Aquasave inlet valves. Diaphragms are the primary wear-and-tear component in any cistern; having a multi-pack ensures you can instantly resolve leaks, "whistling" valves, or slow-fill issues across multiple toilets. These units feature the latest blue-insert design for maximum reliability and a superior seal.
Identification Guide:
Quantity: 5 Individual Washers | Compatibility: Dudley Hydroflo & Aquasave | Size: 29mm Diameter | Revised Model: Blue (replaces original white version)
Key Benefits
- Stock & Save: Buying in bulk offers significantly better value for landlords, hotels, or busy households.
- Official Revised Part: The blue center denotes the latest material revision from Thomas Dudley for longer life.
- Universal Hydroflo Fit: Works seamlessly with all side-entry and bottom-entry Hydroflo fill valves.
- Tool-Free Swap: Most Dudley valves allow you to swap these out by hand once the cap is unscrewed.
Maintenance Note
If you are replacing an older white washer, these blue revised versions are the 100% compatible official successor. We recommend keeping the remaining spares in a cool, dry place to prevent the rubber from perishing over time, ensuring they are ready whenever a leak occurs.



