{"product_id":"bulkhead-buttress-thread","title":"Pentair Genuine OEM Bulkhead, Buttress Thread","description":"\u003cp\u003eThe Pentair 194801Z is a 2 inch filter bulkhead fitting with buttress threads, the genuine Pentair part. It is listed for the Clean and Clear Plus cartridge filters and the FNS Plus DE filters.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy the thread form matters\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA buttress thread is coarse and asymmetric, designed to hold under load on a molded plastic tank port. It is not the same as pipe thread and the two do not interchange. Trying to force a standard fitting into a buttress port distorts the port and turns a cheap repair into a tank replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThe symptom it fixes\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA slow weep where the plumbing enters the filter is usually the bulkhead, not the tank. Age, over tightening, and freeze damage all crack these fittings, and once the sealing face is distorted no amount of thread sealant will hold it. Replacing the bulkhead puts the sealing surface back.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCheck the size and thread form of the fitting you are removing, and confirm your filter is one of the models this part is listed for.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48626823200980,"sku":"PAC-051-6490","price":108.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_5e8a75c8-a18d-4767-b46b-5e6642ca8823.png?v=1788715486","url":"https:\/\/www.activepoolsupply.com\/products\/bulkhead-buttress-thread","provider":"Active Pool Supply","version":"1.0","type":"link"}