Hayward DEX2421J2 filter clamp bolt and nut setHayward Clamp Bolt and Nut, DEX2421J2 In stock$4999
Hayward DEX2421J2 filter clamp bolt and nut set
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Hayward Clamp Bolt and Nut, DEX2421J2

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$4999
In stock
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Quick overview

  • Genuine Hayward hardware The factory DEX2421J2 bolt and nut, matched to the original clamp.
  • Bolt and nut together Supplied as the pair, so you are not hunting a matching nut separately.
  • SwimClear and Pro-Grid Used on Hayward SwimClear cartridge filters and Pro-Grid DE filters.
  • The part that seals the tank The clamp only holds pressure if this bolt can still be pulled up tight.
  • Common corrosion failure Bolts seize, round off or rust through long before the clamp band does.
  • Straightforward swap Fits in place of the original hardware during a routine filter service.
Full description and specifications ↓

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Product details

The Hayward DEX2421J2 is the clamp bolt and nut used on SwimClear cartridge filters and Pro-Grid DE filters. It is the genuine Hayward hardware, supplied as the bolt and its nut together.

Why this small part matters

The band clamp around a filter tank only holds pressure because this bolt can still be drawn up tight. Bolts in a wet equipment pad corrode, stretch and round off at the head, and once that happens the clamp cannot be torqued evenly. Owners usually notice it as a slow weep at the tank split, or as a bolt that will not come loose at teardown.

Fitment

It covers SwimClear models C2020 through C7000, the C2030 through C7030 range, and the Pro-Grid DE2420, DE3620, DE4820, DE6020 and DE7220 DE filters. Fit it during a routine filter service while the tank is already open.

Specifications
Brand Hayward
Manufacturer part number DEX2421J2
UPC 610377105989
Part type Pool filter part
Type Clamp bolt and nut
Fits Hayward SwimClear C2020/C2025, C3020/C3025, C4020/C4025, C5020/C5025, C7000
Also fits Hayward SwimClear C2030, C3030, C4030, C5030, C7030
Also fits Hayward Pro-Grid DE2420, DE3620, DE4820, DE6020, DE7220
Shipping weight 0.3 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

Does this include both the bolt and the nut?
Yes. DEX2421J2 is supplied as the bolt and nut together.
Which filters use it?
Hayward SwimClear cartridge filters in the C2020 through C7000 and C2030 through C7030 ranges, and Pro-Grid DE filters DE2420, DE3620, DE4820, DE6020 and DE7220.
Is it a genuine Hayward part?
Yes. This is the Hayward replacement, part number DEX2421J2.
Why replace the bolt rather than reuse it?
Clamp bolts corrode and stretch. One that is rusted, seized or rounded off cannot be torqued evenly, and a clamp that is not pulled up tight is where the tank starts to weep.
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