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Sticker on the pump body (the part with the basket), not on the motor. Motor labels from Century, A.O. Smith or Regal won't match parts.
Label on the side of the tank near the base. Size is in sq ft, e.g. 420 sq ft = C4030 or CCP420.
Rating plate inside the front access panel. Note the BTU and gas type (NG or LP).
Molded into the body or printed on top. Robotic cleaners: on the power supply.
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Hayward ProGrid Complete Element Cluster | 24 Sq. Ft | DEX2400DC
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The DEX2400DC Complete Element Cluster is a full internal replacement for Hayward Pro-Grid DE2420 and Micro-Clear DE2400 filters, giving 24 square feet of filtration in one pre-assembled unit. It arrives built and aligned — eight grids seated on the bottom locator, topped by the collector manifold with flex air relief, and drawn together on the retainer rod. Also sold under part number DEX2420DC.
- Fits DE2420 and DE2400 Filter Systems: Complete internal assembly for Hayward Pro-Grid and Micro-Clear 24 sq ft vertical DE filters
- Arrives Pre-Assembled: Eight grids, top collector manifold, flex air relief, element locator and retainer rod, built and squared up
- 24 Sq Ft of Filtration Surface: Full rated area restored, so pressure and flow return to where they were when the filter was new
- Hayward Manifolds, Unicel Elements: Genuine Hayward top and bottom manifolds paired with Unicel grid elements
- Cuts Service Time: No sorting grids by size or fighting the rod alignment — the stack drops into the tank as one piece
- Also Solves Manifold Faults: Replaces a cracked collector or broken air relief at the same time as the grids
This complete assembly comes pre-assembled and ready to install.
- (8) DE grids, 12" — seven full and one partial, Unicel FS-2002
- (1) Top Collector Manifold: DEX2400C
- (1) Flex Air Relief Assembly: DEX2400CR
- (1) Filter Element Locator: DEX2400H
- (1) Retainer Rod: DEX2400R
- (1) Retainer Nut: ECX176865
- (2) Washer: ECX1109
Note: DE powder is not included. A 24 sq ft filter takes roughly 6 lbs of DE after a full teardown — check your filter label for the exact charge.
- Hayward Pro-Grid 24 sq ft DE Filter: DE2420
- Hayward Micro-Clear 24 sq ft DE Filter: DE2400
- Also listed as: DEX2420DC
Not compatible with: the larger Pro-Grid tanks. DE3620, DE4820, DE6020 and DE7220 use taller grids and longer retainer rods — see DEX3600DC, DEX4800DC, DEX6000DC and DEX7200DC.
- Filtration area: 24 sq ft
- Grid count: 8 (7 full, 1 partial)
- Grid height: 12"
- Retainer rod length: 16"
- Assembled dimensions: approx. 17" L x 17" W x 22" H
Is DEX2400DC the same as DEX2420DC?
Yes. The two numbers refer to the same 24 sq ft assembly — DEX2400DC is the Micro-Clear era number and DEX2420DC the Pro-Grid one. Either will fit a DE2420 or a DE2400.
How do I know whether my grids need replacing or just cleaning?
Pull one and look at it in the light. If the fabric is thin, torn at the seams, or you can see through it in patches, DE is passing into the pool and cleaning will not bring it back. If the grids are simply grey and loaded, soak and rinse them instead.
My pressure will not drop after backwashing. Will this fix it?
Often, yes. A collector manifold that has cracked internally, or grids clogged solid with oils and scale, both hold pressure high after a backwash. This assembly replaces the manifold and all eight grids together, which is why it clears the problem where a single part does not.
Do I have to replace the whole cluster, or can I do one grid?
Single grids are available, but grids age at the same rate. If one has failed after several seasons the rest are usually close behind, and a full cluster is faster than three separate service calls.
How long should a set of grids last?
Three to five years is typical with routine backwashing and an annual teardown. Hard water, heavy chemical dosing and running the pump against a dirty filter all shorten that.
What do I need to recharge the filter afterwards?
Fresh DE powder, added through the skimmer with the pump running once the tank is sealed and purged of air. Charge to the weight listed on your filter label rather than guessing — underfilling lets debris blind the fabric.