{"product_id":"trunk-reducer","title":"Trunkline Reducer","description":"\u003cp data-start=\"155\" data-end=\"328\"\u003eThis \u003cstrong data-start=\"160\" data-end=\"191\"\u003eductboard trunkline reducer\u003c\/strong\u003e is built to provide a smooth, efficient transition between different duct sizes while maintaining proper airflow and system performance.\u003c\/p\u003e\n\u003cp data-start=\"330\" data-end=\"525\"\u003eFabricated in-shop for accuracy and consistency, each reducer is designed to minimize turbulence and static pressure loss—helping your system run more efficiently and install faster in the field.\u003c\/p\u003e\n\u003chr data-start=\"527\" data-end=\"530\"\u003e\n\u003ch3 data-section-id=\"pm8yra\" data-start=\"532\" data-end=\"552\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"536\" data-end=\"552\"\u003eKey Features\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"553\" data-end=\"812\"\u003e\n\u003cli data-section-id=\"q1fx04\" data-start=\"553\" data-end=\"603\"\u003ePrecision-built \u003cstrong data-start=\"571\" data-end=\"603\"\u003eductboard reducer transition\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"15qz9am\" data-start=\"604\" data-end=\"650\"\u003eSmooth airflow design to reduce turbulence\u003c\/li\u003e\n\u003cli data-section-id=\"1s2fltv\" data-start=\"651\" data-end=\"705\"\u003eHigh-quality \u003cstrong data-start=\"666\" data-end=\"703\"\u003efoil-faced ductboard construction\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"kkby6x\" data-start=\"706\" data-end=\"751\"\u003eClean, square edges for easy installation\u003c\/li\u003e\n\u003cli data-section-id=\"pz0odg\" data-start=\"752\" data-end=\"812\"\u003eCustom sizes available to match your system requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"814\" data-end=\"817\"\u003e\n\u003ch3 data-section-id=\"1lhszvz\" data-start=\"819\" data-end=\"839\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"823\" data-end=\"839\"\u003eApplications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"840\" data-end=\"989\"\u003e\n\u003cli data-section-id=\"18jw355\" data-start=\"840\" data-end=\"870\"\u003eTrunkline size transitions\u003c\/li\u003e\n\u003cli data-section-id=\"gvu6q2\" data-start=\"871\" data-end=\"905\"\u003eSupply and return duct systems\u003c\/li\u003e\n\u003cli data-section-id=\"zvegpb\" data-start=\"906\" data-end=\"947\"\u003eResidential and light commercial HVAC\u003c\/li\u003e\n\u003cli data-section-id=\"1nt3s0n\" data-start=\"948\" data-end=\"989\"\u003eRetrofit or new construction projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"196\" data-end=\"269\"\u003eThe listed price covers ductboard trunkline reducers \u003cstrong data-start=\"249\" data-end=\"268\"\u003eup to 20” x 30”\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"271\" data-end=\"358\"\u003eLarger sizes, custom configurations, or high-volume orders will require a custom quote.\u003c\/p\u003e","brand":"Top-Air Ductboard Fabrication","offers":[{"title":"Default Title","offer_id":48931179200754,"sku":null,"price":132.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/4173\/3362\/files\/ChatGPTImageMar29_2026_04_14_32PM.png?v=1774815416","url":"https:\/\/topairfl.com\/products\/trunk-reducer","provider":"Top-Air Ductboard Fabrication","version":"1.0","type":"link"}