{"product_id":"uni-nut-for-3-heater-tube","title":"Thermcore Products Uni-Nut for 3\" Heater Tube","description":"\u003cp\u003ePart number 86-02370 is the uni-nut for a 3 inch heater tube. It measures 4 inch across the outside, turns onto 3-5\/8 inch threads, and has a 3-3\/8 inch inside flange.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe uni-nut is the large threaded collar that draws a heater tube up against its mating flange and holds the joint together. The nut supplies all the clamping force in that connection, so if it is cracked, stripped or distorted the joint will weep no matter how good the o-ring is.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitting\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe seal itself is made by a separate 3 inch o-ring gasket, which is not part of this listing. Fit a fresh o-ring at the same time, seat the nut square, and bring it up hand tight. These nuts split when they are wrenched down, so extra torque buys a leak rather than a seal.\u003c\/p\u003e","brand":"Thermcore Products","offers":[{"title":"Default Title","offer_id":48634975846612,"sku":"ATP-851-1008","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_6c566be3-0fc8-4ecf-8129-4edfcd15f4e5.jpg?v=1788839258","url":"https:\/\/www.activepoolsupply.com\/products\/uni-nut-for-3-heater-tube","provider":"Active Pool Supply","version":"1.0","type":"link"}