Swimming DE Pool Filter Grids Compatible with Hayward Pro-Grid DE4820

Our review of these Swimming DE pool filter grids finds them best suited for pool owners who need a direct, affordable replacement for Hayward Pro-Grid DE4820 or Micro Clear models. The most compelling reason to buy is the large 48-square-foot filtration area, which handles high water flow and captures suspended particles effectively. Installation is straightforward and customers report an accurate fit, making this a practical option for routine maintenance or when replacing worn DE grids without changing the filter housing.

Key Features

• Compatibility: Designed to replace Hayward Pro-Grid DE4820, Micro Clear DE4800/DE480S and Penair FNS Plus grids, so it fits common DE filter housings without modification.
• Filtration area: The 48 sq ft cartridge area processes large volumes of water and removes suspended particles, organics and impurities for clearer pool water.
• Durable materials: Constructed from corrosion and weather resistant materials to provide stable, long-lasting performance in outdoor pool environments.
• Replacement part numbers: Matches multiple OEM part numbers such as PG-1904 and FG-1004 to simplify ordering the correct grid set.
• Improved circulation: By removing fine contaminants it helps the pool circulation system run more efficiently, reducing strain on pumps and other equipment.

Who It's For

This grid set is for residential pool owners or maintenance professionals who need a direct replacement for a Hayward Pro-Grid DE4820, Hayward Micro Clear DE4800/DE480S or Penair FNS Plus system and who value straightforward fit and strong filtration area. It works well for pools that accumulate suspended particles and organics and where a reliable, long-lived grid is preferred over repeated small fixes.

It is not aimed at owners who need custom-sized or specialty media, or those replacing an entire filtration system rather than just the grid elements. If a different filtration technology is desired, such as cartridge or sand conversions, this direct replacement grid set is not the right choice.

Pros & Cons

Pros

• Large 48 sq ft area provides effective removal of suspended particles and organics.
• Compatible with several Hayward and Penair models, making it easy to find the correct replacement.
• Built from corrosion and weather resistant materials for longer service life.
• Customers report easy installation and a precise fit in compatible filter housings.

Cons

• Not suitable for filters or housings outside the listed compatible models, so verification is required before purchase.

Specifications

Brand	Aumzong (compatible replacement)
Filtration area	48 sq ft
Height	24 in
Compatible models	Hayward Pro-Grid DE4820, Micro Clear DE4800, DE480S, Penair FNS Plus
Replacement part numbers	PG-1904, FG-1004, DEX4800DA, DEX4800DS, FC-9340, FC-9440
Material properties	Corrosion and weather resistant construction

Our Verdict

The Swimming DE pool filter grids are a practical, cost-effective replacement for owners of Hayward Pro-Grid DE4820 and similar models who need reliable filtration with easy installation. With a true 48 sq ft area and durable materials, it offers strong value for maintenance cycles and improves water clarity without altering existing filter hardware.

Frequently Asked Questions

Will these grids fit my Hayward DE4820 filter?
Yes, they are designed as compatible replacements for Hayward Pro-Grid DE4820 and related Micro Clear models, but confirm model numbers before purchase.

How much filtration area do these grids provide?
The set provides a 48 sq ft filtration area and the grids are 24 in in height, suitable for handling large water flow in compatible systems.

Are these grids durable for outdoor pool use?
Yes, they are made from high quality corrosion and weather resistant materials to extend service life in outdoor conditions.