{"product_id":"4-double-wall-adj-90","title":"4 DOUBLE WALL ADJ 90","description":"\u003cp\u003e4 DOUBLE WALL ADJ 90\u003c\/p\u003e\n\u003ch2 data-section-id=\"mipyxe\" data-start=\"141\" data-end=\"157\"\u003e🔧 What it is\u003c\/h2\u003e\n\u003cul data-start=\"158\" data-end=\"368\"\u003e\n\u003cli data-section-id=\"1t5tuy7\" data-start=\"158\" data-end=\"176\"\u003eSize: \u003cstrong data-start=\"166\" data-end=\"176\"\u003e4 inch\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"6794wz\" data-start=\"177\" data-end=\"235\"\u003eType: \u003cstrong data-start=\"185\" data-end=\"235\"\u003eAdjustable 90° elbow (adjustable bend fitting)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1t9dqjp\" data-start=\"236\" data-end=\"303\"\u003eConstruction: \u003cstrong data-start=\"252\" data-end=\"303\"\u003eDouble-wall (inner duct + insulated outer wall)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"cpm1ai\" data-start=\"304\" data-end=\"368\"\u003eFunction: changes direction of airflow by up to \u003cstrong data-start=\"354\" data-end=\"368\"\u003e90 degrees\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"370\" data-end=\"373\"\u003e\n\u003ch2 data-section-id=\"mzz3kp\" data-start=\"375\" data-end=\"393\"\u003e⚙️ What it does\u003c\/h2\u003e\n\u003cul data-start=\"394\" data-end=\"609\"\u003e\n\u003cli data-section-id=\"q6pfg\" data-start=\"394\" data-end=\"442\"\u003eRedirects airflow in a \u003cstrong data-start=\"419\" data-end=\"442\"\u003e4\" duct\/vent system\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ckr3y8\" data-start=\"443\" data-end=\"503\"\u003eAdjustable design allows angle flexibility (not fixed 90°)\u003c\/li\u003e\n\u003cli data-section-id=\"hy7dzy\" data-start=\"504\" data-end=\"542\"\u003eMaintains \u003cstrong data-start=\"516\" data-end=\"542\"\u003einsulated airflow path\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1y15msr\" data-start=\"543\" data-end=\"609\"\u003eReduces:\n\u003cul data-start=\"556\" data-end=\"609\"\u003e\n\u003cli data-section-id=\"j5xu2b\" data-start=\"556\" data-end=\"569\"\u003eHeat loss\u003c\/li\u003e\n\u003cli data-section-id=\"ki2lvv\" data-start=\"572\" data-end=\"588\"\u003eCondensation\u003c\/li\u003e\n\u003cli data-section-id=\"1vx1665\" data-start=\"591\" data-end=\"609\"\u003eNoise transfer\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"611\" data-end=\"648\"\u003e\u003cspan class=\"inline-block align-middle\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-mathml\"\u003e\u003cmath xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"\u003e\u003csemantics\u003e\u003cmrow\u003e\u003cmsup\u003e\u003cmn\u003e90\u003c\/mn\u003e\u003cmo\u003e∘\u003c\/mo\u003e\u003c\/msup\u003e\u003c\/mrow\u003e\u003cannotation encoding=\"application\/x-tex\"\u003e90^\\circ\u003c\/annotation\u003e\u003c\/semantics\u003e\u003c\/math\u003e\u003c\/span\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e9\u003c\/span\u003e\u003cspan class=\"mord\"\u003e0\u003cspan class=\"msupsub\"\u003e\u003cspan class=\"vlist-t\"\u003e\u003cspan class=\"vlist-r\"\u003e\u003cspan class=\"vlist\"\u003e\u003cspan\u003e\u003cspan class=\"pstrut\"\u003e\u003c\/span\u003e\u003cspan class=\"sizing reset-size6 size3 mtight\"\u003e\u003cspan class=\"mbin mtight\"\u003e∘\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"650\" data-end=\"653\"\u003e\n\u003ch2 data-section-id=\"173plne\" data-start=\"655\" data-end=\"673\"\u003e🧱 Key features\u003c\/h2\u003e\n\u003cul data-start=\"674\" data-end=\"938\"\u003e\n\u003cli data-section-id=\"1mr84wu\" data-start=\"674\" data-end=\"723\"\u003e\u003cstrong data-start=\"676\" data-end=\"723\"\u003eAdjustable elbow (flexible angle up to 90°)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"1e1h6ii\" data-start=\"724\" data-end=\"782\"\u003eDouble-wall construction for insulation and durability\u003c\/li\u003e\n\u003cli data-section-id=\"10xrlrz\" data-start=\"783\" data-end=\"827\"\u003eInner liner maintains airflow efficiency\u003c\/li\u003e\n\u003cli data-section-id=\"6u9yhe\" data-start=\"828\" data-end=\"876\"\u003eOuter shell provides protection and rigidity\u003c\/li\u003e\n\u003cli data-section-id=\"1561ru4\" data-start=\"877\" data-end=\"938\"\u003eSlip-fit or gasketed connections depending on system typ\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AMERICAN METAL PRODUCTS CORP","offers":[{"title":"Default Title","offer_id":52410833535265,"sku":"4EAL","price":39.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/1905\/1041\/files\/download_10_08488057-0b55-4c9c-8d1c-2f544cddee74.jpg?v=1778618925","url":"https:\/\/standardvmi.com\/products\/4-double-wall-adj-90","provider":"Standard Plumbing Supply","version":"1.0","type":"link"}