Hayward ECX11034SET Perflex Top & Bottom Tube Sheet Set (EC65 / EC75)
The Hayward ECX11034SET is an OEM top and bottom tube sheet set for Hayward Perflex extended-cycle D.E. filters. The tube sheets support and align the internal flex-tube nest so the filter can hold D.E. properly and maintain efficient filtration without internal bypassing.
Fits / Compatibility
- Hayward Perflex extended-cycle D.E. filters: EC65, EC65A, EC75, EC75A
- Pool Type: In-Ground
What’s Included
- (2) Tube sheets: Top and Bottom
Common Reasons to Replace
- Cracked or warped tube sheet causing poor tube alignment
- Internal bypassing or D.E. leakage traced to damaged tube sheet supports
- Flex-tube nest won’t seat correctly after service
- Rebuild/refresh of an older EC65/EC75 filter where internal components are brittle
Installation Notes
- Turn off the pump and relieve filter pressure before opening the tank.
- Disassemble per your EC65/EC75 parts diagram and verify the flex tubes seat fully into the new top and bottom sheets.
- Inspect related internal parts while open (flex tubes, bump mechanism parts, diaphragm gasket, tank O-ring) and replace worn components as needed.
- After reassembly, recharge the filter with the correct D.E. amount for your model and check for leaks/bypass during startup.
Specs (Quick Reference)
- Part Number: ECX11034SET
- Part Type: Filter Parts (Tube Sheet Set)
- Channel: Open Line
- Warranty: 6 months (parts only)
Related Products
- Hayward ECX11034SET Tube Sheet Set (search)
- Hayward Perflex EC65 / EC65A Parts (search)
- Hayward Perflex EC75 / EC75A Parts (search)
- Hayward Perflex Diaphragm Gasket (search)
- Hayward Perflex Bump Shaft (ECX1110) (search)
- D.E. Filter Powder (search)
Maintenance Tips
- Use the correct D.E. charge for your filter size—too little can reduce filtration and stress internal components.
- If bumping no longer restores flow, plan a full tear-down cleaning and inspect the tube nest, tube sheets, and diaphragm gasket.
- Keep water chemistry balanced to reduce scale that can make internal parts stick and shorten component life.
- Always depressurize the filter before opening—never loosen clamps or hardware under pressure.








