Hayward ECX5000BP Filter Head with Vent Valve (Platinum) for Perflex Extended-Cycle D.E. Filters
The Hayward ECX5000BP is an OEM filter head (top cover) with integrated vent valve for Hayward Perflex extended-cycle D.E. filters. This is the upper head that clamps to the filter body and provides the mounting point for the internal bump mechanism, while the vent valve helps bleed trapped air during startup and service.
Fits / Compatibility
- Hayward Perflex EC40AC Extended-Cycle D.E. filter
- Hayward Perflex EC50AC Extended-Cycle D.E. filter
- Also commonly referenced for Perflex EC-series variants that use the same clamp-style head (verify your model/parts diagram)
Key Features
- Complete filter head (top) with built-in vent valve
- Helps restore a tight, secure top seal when the original head is cracked, warped, or leaking
- Designed for clamp-style Perflex “AC” filter configurations
Specs (Quick Reference)
- Part Number: ECX5000BP
- Part Type: Filter Head / Top with vent valve
- Approx. Dimensions: 13.5″ L x 13.5″ W x 5″ D
- Common Alternate Part Numbers: EC5000BP, 4810-04E
Common Reasons to Replace
- Hairline cracks or visible damage on the filter head
- Persistent leaking at the top clamp area after replacing the main tank O-ring
- Vent valve area leaking or damaged
- Warped head from age/heat/over-tightening
Installation Notes
- Turn off the pump and relieve filter pressure before loosening the clamp.
- Inspect the clamp assembly and the large tank O-ring; replace worn seals to prevent repeat leaks.
- Clean sealing surfaces and seat the head evenly before tightening the clamp.
- After reassembly, restart the system and use the vent valve to purge air until a steady stream of water appears.
Related Products
- Hayward ECX5000BP Filter Head (search)
- Hayward Perflex EC40AC Parts (search)
- Hayward Perflex EC50AC Parts (search)
- Hayward ECX1322A Directional Vent Valve (search)
- Hayward Perflex Clamp Assembly (search)
- Hayward ECX5000G Diaphragm Gasket (search)
Maintenance Tips
- Always shut the pump off and bleed pressure before opening the filter.
- Keep the clamp band and sealing surfaces clean—grit can cause leaks and uneven clamp tension.
- Lubricate large O-rings lightly with a silicone-based pool lubricant to reduce pinching and improve sealing.
- If you see D.E. returning to the pool, inspect internal gaskets/diaphragm components during your next service.
