{"product_id":"mm-manufacturing-641r6-14x6x8-insulated-register-box-r-6","title":"Mm Manufacturing 641R6-14X6X8 Insulated Register Box R-6","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe MM Manufacturing 641R6-14X6X8 is an insulated sheet metal register box designed for use in forced-air duct distribution systems. The interior is lined with 1.5 inches of ductliner material, delivering an R-6 thermal rating to limit heat loss and condensation at the register opening. The box features a snap-rail flange for secure grille or register attachment without additional fasteners. At 6.75 inches in height, it fits standard residential and light commercial floor, ceiling, and sidewall register applications. Licensed HVAC technicians and sheet metal installers work with this component during new construction and duct retrofit projects.\u003c\/p\u003e\n\u003cp\u003eThis register box is suited for residential and light commercial forced-air HVAC installations where insulated ductwork terminations are required. The snap-rail flange design simplifies register and grille seating, making it a practical choice for floor boot and sidewall applications. The R-6 ductliner lining helps maintain supply air temperature between the plenum and the register face, which is especially important in unconditioned spaces such as crawlspaces, attics, and exterior wall cavities.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eInterior lined with 1.5 inches of ductliner for an R-6 thermal rating\u003c\/li\u003e\n  \u003cli\u003eSnap-rail flange for tool-free grille and register attachment\u003c\/li\u003e\n  \u003cli\u003eNominal 14 x 6 x 8 inch sizing for standard register openings\u003c\/li\u003e\n  \u003cli\u003eOverall dimensions: 16 inches length x 8 inches width x 6.75 inches height\u003c\/li\u003e\n  \u003cli\u003eWeighs 2.25 pounds for easy single-person handling during installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement and new-construction component for residential and light commercial forced-air duct systems requiring a 14 x 6 x 8 inch insulated register box termination with snap-rail flange.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by a licensed HVAC technician or sheet metal installer. Shut down the air handler and isolate the duct system before cutting or modifying any ductwork. Seal all joints with UL 181-rated mastic or foil tape per local mechanical code requirements. Do not compress or damage the interior ductliner during fitting, as this reduces the effective R-value of the assembly.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Size\u003c\/strong\u003e: 14 x 6 x 8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Width\u003c\/strong\u003e: 8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Height\u003c\/strong\u003e: 6.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsulation Thickness\u003c\/strong\u003e: 1.5 inches ductliner\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThermal Rating\u003c\/strong\u003e: R-6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.25 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlange Type\u003c\/strong\u003e: Snap-rail\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: MM Manufacturing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 641R6-14X6X8\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"M\u0026M MANUFACTURING","offers":[{"title":"Default Title","offer_id":51268064149810,"sku":"641R6-14X6X8","price":38.82,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/308913372.webp?v=1780698188","url":"https:\/\/voomisupply.com\/products\/mm-manufacturing-641r6-14x6x8-insulated-register-box-r-6","provider":"Voomi Supply","version":"1.0","type":"link"}