{"product_id":"hart-cooley-10820-register-model-661-2-way-ms-valve-10-x-8","title":"Hart \u0026 Cooley 10820 Register Model 661 2-Way MS Valve (10 x 8)","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe Hart \u0026amp; Cooley 10820 register (Model 661) is a steel supply register with a 2-way multi-slit (MS) valve designed for sidewall or ceiling installation. It fits a 10 x 8 inch wall opening and provides directional airflow control for heating and cooling systems. The unit features galvanized steel construction and an integrated multi-shutter damper for adjustable airflow and positive shut-off.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGalvanized steel construction with integrated multi-shutter damper for airflow control\u003c\/li\u003e\n  \u003cli\u003eTwo-way deflection with 1\/3 inch fin spacing and fins set at 20 degrees for directional distribution\u003c\/li\u003e\n  \u003cli\u003eNominal wall opening 10 x 8 inches; 1-5\/8 inch depth when fully opened, suitable for shallow duct installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eProduct Highlights\u003c\/h4\u003e\n\u003cp\u003e10 x 8 in steel sidewall\/ceiling supply register, integrated multi-shutter damper, 2-way deflection, 1\/3 in fin spacing\u003c\/p\u003e\n\u003ch3\u003eProduct Information\u003c\/h3\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: HART \u0026amp; COOLEY\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 10820\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e: United States\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: Hart \u0026amp; Cooley\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMPN\u003c\/strong\u003e: 10820\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel\u003c\/strong\u003e: 661\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Supply register\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 661 Series\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWall Opening Size\u003c\/strong\u003e: 10 x 8 in (nominal)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Size\u003c\/strong\u003e: 11-5\/8 x 9-5\/8 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDuct Opening Size\u003c\/strong\u003e: 7-1\/2 in H x 9-7\/16 in W\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Galvanized steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Enamel (bright white)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDeflection Type\u003c\/strong\u003e: 2-way\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDamper\u003c\/strong\u003e: Multi-shutter (integrated)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrille Spacing\u003c\/strong\u003e: 1\/3 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDeflection Angle\u003c\/strong\u003e: 20 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFully Open Depth\u003c\/strong\u003e: 1-5\/8 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCFM Rating\u003c\/strong\u003e: 345 cfm (likely maximum\/at specific velocity; verify test conditions)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eArea\u003c\/strong\u003e: 0.345 sq-ft (likely free area; does NOT equal nominal 10 x 8 opening area)\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"HART \u0026 COOLEY","offers":[{"title":"Default Title","offer_id":51620841947442,"sku":"10820","price":39.63,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4e6f9243bc311e4db5ecdc9dfe33a9f7.jpg?v=1787347051","url":"https:\/\/voomisupply.com\/products\/hart-cooley-10820-register-model-661-2-way-ms-valve-10-x-8","provider":"Voomi Supply","version":"1.0","type":"link"}