{"product_id":"machined-nut","title":"Pentair Genuine OEM Machined Nut","description":"\u003cp\u003eThe Pentair 194997Z is the machined clamp nut used on the FNS, INS and Quad DE filters. It is the genuine Pentair part, described in the factory data as a brass clamp nut.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA DE filter tank is held together by a clamp band, and the band is drawn closed by a threaded nut. That nut carries the whole clamping load against system pressure. When its threads corrode, gall or strip, the band cannot be pulled down evenly and the tank starts to weep at the split line, usually right after a filter has been opened for a clean.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eConfirm you have an FNS, INS or Quad DE filter, and inspect the tank o-ring while the filter is open. A leaking split line is often the o-ring rather than the nut, and it is cheap insurance to replace both while the tank is apart.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48627969032404,"sku":"PAC-051-1928","price":19.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_5ddf448c-4434-4027-8253-88bed5f86e9a.png?v=1788731977","url":"https:\/\/www.activepoolsupply.com\/products\/machined-nut","provider":"Active Pool Supply","version":"1.0","type":"link"}