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Hayward Pro Grid DE Filter

The Hayward ProGrid is a vertical grid D.E. filter for residential in-ground pools. Diatomaceous earth powder coats the internal grid surfaces and captures particles down to 5 microns — finer than sand or cartridge filtration. Three models cover 36, 48, and 60 sq ft of filter area. A compatible backwash valve is required for installation and must be purchased separately; no valve ships with any ProGrid model.

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How the ProGrid Vertical Grid D.E. Filter Works

Pool water enters through the top of the filter tank and passes through the pleated D.E.-coated grid surfaces, where particles down to 5 microns are trapped. Filtered water exits through the bottom and returns to the pool. As the D.E. cake loads with debris, operating pressure rises. When pressure climbs 8 to 10 PSI above the clean baseline, the filter is serviced through a compatible backwash valve — spent D.E. is cleared, and a fresh D.E. charge recoats the grids.

The one-piece flange clamp gives access to the full grid assembly for periodic deep cleaning and inspection without disturbing plumbing connections. Minimum vertical clearance above the filter is required for grid removal; see each product page for the specific clearance dimension.

Choosing the Right ProGrid Model

Match the filter's design flow rate to your pump's output at actual system operating head. The 36 sq ft model (W3DE3620) handles up to 90 GPM; the 48 sq ft (W3DE4820) up to 96 GPM; the 60 sq ft (W3DE6020) up to 120 GPM. A larger filter area means longer intervals between servicing and lower sustained operating pressure at equivalent pool sizes.

Product Filter Area Flow Rate D.E. Charge Valve
Hayward ProGrid 36 Sq Ft Vertical Grid D.E. Pool Filter 36 sq ft 90 GPM 7.5 lbs Not included
Hayward ProGrid 48 Sq Ft Vertical Grid D.E. Pool Filter 48 sq ft 96 GPM 6 lbs Not included
Hayward ProGrid 60 Sq Ft Vertical Grid D.E. Pool Filter 60 sq ft 120 GPM 7.5 lbs Not included

Flow rates and D.E. charges per Hayward published specifications. A compatible backwash valve (SP0740DE, SP0710XR50, SP0715XR50, or SP0410X5025) must be purchased separately for all ProGrid models. D.E. powder not included.

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