{"product_id":"grid-19-3-4-4-req-st40-st50","title":"Pentair Turbo 66 ST40\/ST50 Full Grid, 19-3\/4\"","description":"\u003cp\u003eThe Pentair 191322 is a full DE filter grid in the 19-3\/4 inch size. It fits Pentair Star and Star Polymeric ST40\/50 pool and spa DE filters and PacFab Turbo 66 filters.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOne grid, four needed\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis listing is a single grid. The filter takes four, so order accordingly if you are replacing a whole set. Mixing an old grid in with new ones usually means coming back to the job sooner than you wanted.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow it is built\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHeavy duty polyester over a reinforced core. The core holds the shape under flow and the fabric carries the DE coat, which is what does the actual filtering. Rated to catch particles as small as 2 to 5 microns.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy grids matter to the pump\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA grid that has torn, collapsed or clogged makes the pump work against pressure it was not meant to fight. Fresh grids let water through the way the filter was designed to, which takes load off the pump.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48626842173652,"sku":"PAC-051-8130","price":55.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_0bd3300d-0348-4369-94b9-9c8b849af52b.png?v=1788715767","url":"https:\/\/www.activepoolsupply.com\/products\/grid-19-3-4-4-req-st40-st50","provider":"Active Pool Supply","version":"1.0","type":"link"}