Hayward Pro-Grid DE Diatomaceous Earth Swimming Pool Filter 48 Sq. Ft. W3DE4820
W3DE4820 is the online version of DE4820 filter which is a Expert Line product and is sold only in brick and mortar stores.
ProGrid vertical grid D.E. filters provide superior water clarity, efficient flow and large cleaning capacity for pools and spas of all types and sizes. ProGrid combines high-tech features and a “service-ease” design for unparalleled filtration.
- Filter tanks are made from the most durable materials to meet the demands of the toughest applications and environmental conditions
- High capacity, rapid release manual air relief valve bleeds air with a quick quarter turn of the lever
- Heavy-duty, tamper-proof, one piece flange clamp securely fastens tank top and bottom and allows quick access to all internal components
Does not include backwash.
WARNING: Product(s) shown and sold in the website and in store can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to 
Pamela X.
Nice job!
Stephen J.
As advertised
Arthur N.
Purchased Hayward Pro-Grid DE Swimming Pool Filter 48 Sq. Ft. W3DE4820
Julie U.
As advertised
Dylan B.
As advertised
Beverly D.
Super!
Julie U.
Very Quick!
Gabriel J.
Delivered in time