
Quick overview
- Three pieces The set is the head bolt, its nut and the washer.
- Clamps the head to the tank These are the fasteners that hold the filter head down.
- Genuine Hayward Factory part number ECX1642A.
- Corrosion is normal Tank hardware lives in a wet pit and eventually seizes, galls or rusts through.
- Listed across several filters It appears in the parts listings for the S200 and S240 sand filters and for Perflex DE filters.
- Replace as a set Fitting a new bolt, nut and washer together avoids fighting a rounded nut on the next service.
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Product details
The Hayward ECX1642A is the filter tank bolt set: the head bolt, the nut and the washer that clamp a filter head down onto the tank.
Why hardware fails first
Filter bolts sit in the wettest, most chemical heavy corner of the equipment pad, and they are the parts that get worked every time a filter is opened. They corrode, they gall, and eventually a nut rounds off or a bolt snaps while it is being torqued. When that happens the filter cannot be closed properly, and no gasket will hold pressure without even clamping force.
Fitting
Replace the bolt, nut and washer together rather than reusing an old nut on a new bolt. One set covers one bolt position, so count the positions on your filter and order accordingly. It is listed for the Hayward S200 and S240 side mount sand filters and also appears in Hayward Perflex DE filter parts listings, so match the hardware on the filter in front of you before ordering.
| Brand | Hayward |
|---|---|
| Manufacturer part number | ECX1642A |
| UPC | 610377614436 |
| Type | Filter tank bolt set |
| Part type | Pool filter part |
| Included | Head bolt, nut and washer |
| Fits | Hayward S200 and S240 side mount sand filters |
| Also listed for | Hayward Perflex EC50, EC50C, EC50A, EC50AC and EC60 Series II DE filters |
| Shipping weight | 0.1 lb |
| Ships | Parcel |
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