Hayward Diaphram Gasket | ECX5000G
Hayward Products
SKU: ECX5000G
Hayward ECX5000G Diaphragm Gasket (New Style / No Screw Holes) for Perflex Extended-Cycle D.E. Filters
The Hayward ECX5000G is an OEM diaphragm gasket used in Hayward Perflex extended-cycle D.E. filters. This gasket is the flexible sealing diaphragm that helps the filter’s internal bump/cleaning mechanism operate correctly while maintaining a tight seal to prevent bypassing and leakage.
Fits / Compatibility
- Hayward Perflex Extended-Cycle D.E. filter models including EC40AC and EC50AC
- Also commonly listed for EC-40C and EC-50C series filters
- Often referenced for additional Perflex/EC-series variants such as EC40C90, EC50C90, and related configurations (match your filter model/parts diagram)
Key Features
- New style diaphragm gasket commonly described as without screw holes
- Made from durable, chemical-resistant rubber for long service life
- Helps maintain proper internal sealing and efficient filtration performance
Common Reasons to Replace
- Water leaking at the filter’s internal diaphragm area
- Filter performance drop due to internal bypassing (worn or torn diaphragm)
- Cracked, stiff, swollen, or torn gasket discovered during filter service
- Preventive replacement during a Perflex internal rebuild
Installation Notes
- Turn off the pump and relieve filter pressure before opening the tank.
- Clean sealing surfaces thoroughly before installing the new diaphragm gasket.
- Inspect related internal parts (bump mechanism components, O-rings, and sealing surfaces) while the filter is open.
- After reassembly, restart the system and check for leaks during the first run cycle.
Specs (Quick Reference)
- Part Number: ECX5000G
- Part Type: Diaphragm Gasket
- Material: Rubber
- Common Cross-References: 305173, 4820-08, G-461, HAY-051-1507
Related Products
- Hayward ECX5000G Diaphragm Gasket (search)
- Hayward Perflex EC40AC Filter Parts (search)
- Hayward Perflex EC50AC Filter Parts (search)
- Perflex Diaphragm / Gasket Parts (search)
- D.E. Filter Powder (search)
Maintenance Tips
- Maintain balanced water chemistry to reduce rubber swelling and premature gasket wear.
- If you notice D.E. returning to the pool, inspect internal seals/diaphragm condition during the next service interval.
- When opening a Perflex filter, clean all sealing surfaces—grit and old D.E. can prevent a proper seal.
- Follow the recommended bump/cleaning routine and recharge the correct amount of D.E. after cleaning.
Questions about returns? View our return policy.
Hours Of Operation:
Monday - Friday: 7:00 am to 5:00 pm Phoenix Time
Saturday: 8:00 am to 2:00 pm
Sunday: Closed
- We do not ship on Saturday or Sunday.
- Orders totaling more than $300 will require signature confirmation upon delivery.
- We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
- Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
- Expedited shipping options are available at checkout.
Return Policy:
- Products that are received damaged will receive a refund in store credit.
- Most products are eligible for return within 30 days of receipt, except where noted below.
- To initiate a return, please complete an RMA form prior to sending your item back.
- Original shipping costs are non-refundable and will be deducted from the return credit.
- Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
- Some returns will be charged an automatic 15% restocking fee.
- We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
- Please complete the return form to receive your RMA number and return shipping label.
- Chemical products are not eligible for return under any circumstances.
- The Pentair Colorsync 618031 is not eligible for return.
- Pool cleaners are not eligible for return.
- Opened seals and o-rings are not eligible for return.
- Capacitors are not eligible for return.
- Plastic popup tools are not eligible for return.
- Automation components and circuit boards are not eligible for return.
- If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
- Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.
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