
Quick overview
- Genuine Hayward Factory part ECX176865, not a hardware store substitute.
- 5/16 inch-18 thread The thread size Hayward specifies for this nut.
- For Micro-Clear DE filters Listed for the Hayward Micro-Clear DE filters, including the stainless steel versions.
- Also listed for Pro-Grid Appears in the Pro-Grid DE filter parts listings for models DE2420, DE3620, DE4820, DE6020 and DE7220.
- Holds the assembly together A retainer nut that has corroded or stripped lets the internals shift, and shifted internals let DE past.
- Buy the right one Filter internals are chemically loaded and constantly wet, so the specified nut is worth using.
Similar products
Other products people compare with this one.
Product details
This is the Hayward ECX176865 retainer nut, a 5/16 inch-18 nut used in the Hayward Micro-Clear DE filters. It is the genuine Hayward part.
Where it is used
The nut is listed for the Micro-Clear DE filters, including the stainless steel versions, and it also appears in the Pro-Grid DE filter parts listings for models DE2420, DE3620, DE4820, DE6020 and DE7220. If you are working from a parts breakdown, match the ECX176865 number rather than the description, since a filter carries more than one nut.
Small hardware, real job
Retainer hardware inside a DE filter lives in warm, chlorinated, DE laden water. Threads corrode, nuts strip, and a nut that no longer holds lets the assembly move. Once the internals shift, the grids no longer seat the way they should and DE starts coming back through the returns. It is a cheap part to replace while the filter is already open, and an annoying reason to open it again if it is skipped.
| Brand | Hayward |
|---|---|
| Manufacturer part number | ECX176865 |
| UPC | 610377024938 |
| Type | Retainer nut |
| Thread | 5/16"-18 |
| Part type | Pool filter part |
| For | Hayward Micro-Clear DE filters |
| Also listed for | Hayward Micro-Clear stainless steel DE filters, Hayward Pro-Grid DE filters DE2420, DE3620, DE4820, DE6020, DE7220 |
| Shipping weight | 0.05 lb |
| Ships | Parcel |
Request a quote
Need a volume price, a freight quote, or pricing in writing before you order? We reply the same business day.
Customer reviews
More from Hayward
Questions and answers
What people ask about this product, answered by our pool techs.





















