{"product_id":"mueller-streamline-5kmr8-flex-duct-5-in-r-8-foil-25-ft","title":"Mueller Streamline 5KMR8 Flex Duct 5 in R-8 Foil 25 Ft","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe MUELLER STREAMLINE 5KMR8 is a flexible insulated HVAC air distribution duct built for small-diameter branch runs in unconditioned spaces such as attics, crawlspaces, and mechanical rooms. It ships in a 25-foot length at 5 inches in diameter and carries an R-8 insulation rating, making it suitable for installations where minimizing heat gain or loss along the duct run is a priority. The foil outer jacket provides a durable, moisture-resistant barrier. Licensed HVAC technicians install this product as part of residential or light commercial forced-air distribution systems.\u003c\/p\u003e\n\u003cp\u003eThis flexible duct is used in branch-run applications connecting supply plenums or trunks to diffusers, registers, and terminal units. The 5-inch diameter suits lower-cfm branch circuits typical in bedroom, bathroom, and utility-space supply runs. The R-8 insulation value meets or exceeds energy code requirements in many jurisdictions for ducts located in unconditioned spaces, reducing the need for supplemental duct wrapping on those runs.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eR-8 insulation rating for high thermal efficiency in unconditioned spaces\u003c\/li\u003e\n  \u003cli\u003e5-inch inner diameter sized for small-diameter branch supply runs\u003c\/li\u003e\n  \u003cli\u003eFoil outer jacket resists moisture and provides a cleanable outer surface\u003c\/li\u003e\n  \u003cli\u003e25-foot length per section reduces the number of joints on longer runs\u003c\/li\u003e\n  \u003cli\u003eFlexible construction allows routing around framing, joists, and obstructions without rigid fittings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style flexible duct section for use in residential and light commercial forced-air HVAC systems requiring a 5-inch insulated branch duct with R-8 thermal performance.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed HVAC technician in accordance with SMACNA guidelines and applicable local mechanical codes. Power down the air-handling unit and close the system before making duct connections. Secure each end with an approved duct clamp and mastic or listed duct tape rated for flexible duct; standard cloth-backed tape is not acceptable under most energy codes. Avoid sharp bends or compression of the duct, as either condition reduces effective airflow and insulation performance.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInner Diameter\u003c\/strong\u003e: 5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsulation R-Value\u003c\/strong\u003e: R-8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOuter Jacket\u003c\/strong\u003e: Foil\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 25 feet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: MUELLER STREAMLINE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5KMR8\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MUELLER STREAMLINE","offers":[{"title":"Default Title","offer_id":51621315379506,"sku":"5KMR8","price":95.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b96e42a4a5e7706e7d1194941551a090_ee376130-f692-4f60-88f4-1832f24c8261.jpg?v=1787352774","url":"https:\/\/voomisupply.com\/products\/mueller-streamline-5kmr8-flex-duct-5-in-r-8-foil-25-ft","provider":"Voomi Supply","version":"1.0","type":"link"}