{"product_id":"grid-de-19-1-4x-18","title":"SuperPro DE Filter Grid 19-1\/4\" x 18\"","description":"\u003cp\u003eThe SuperPro FC-9850 is a replacement D.E. filter grid measuring 19-1\/4 inches by 18 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow a DE grid works\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA DE filter does not filter with the grid itself. The grid is a fabric covered frame that holds a coat of diatomaceous earth, and that powder is what traps the dirt. When the fabric tears or the seams open, the DE washes straight through and comes back to the pool as a cloudy plume at the returns.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGetting the right one\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGrids are matched by size, so measure the one you are pulling out and compare it against the 19-1\/4 by 18 inch dimensions here. A filter uses a complete set of grids rather than one, and because they wear at the same rate it is common to change the whole set at once. A new grid working alongside five worn ones often does not solve the DE in the pool.\u003c\/p\u003e","brand":"Filbur","offers":[{"title":"Default Title","offer_id":48633370214612,"sku":"SPG-051-0210","price":50.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/FC-9850.jpg?v=1788798515","url":"https:\/\/www.activepoolsupply.com\/products\/grid-de-19-1-4x-18","provider":"Active Pool Supply","version":"1.0","type":"link"}