{"product_id":"butterfly-damper-with-handle-10-black-steel","title":"10\" Black Steel Butterfly Damper for Round Ceiling Diffuser, Plastic Key Handle","description":"\u003cstyle\u003e\n.ag-spec,.ag-compare{margin:0 0 1.6rem;-webkit-font-smoothing:antialiased}\n.ag-spec table{width:100%;max-width:560px;border-collapse:collapse;font-size:15px;line-height:1.5}\n.ag-spec td{padding:14px 2px;text-align:left;vertical-align:top;border:0;border-bottom:1px solid #eef1f4}\n.ag-spec tr:last-child td{border-bottom:0}\n.ag-spec td:first-child{color:#00446b;font-weight:700;font-size:14.5px;white-space:nowrap;width:44%}\n.ag-spec td:first-child strong{font-weight:700}\n.ag-spec td:last-child{color:#1f2733;font-weight:400}\n.ag-compare table{width:100%;max-width:760px;border-collapse:collapse;font-size:15px;line-height:1.5}\n.ag-compare th{background:transparent;color:#00446b;padding:14px 16px;text-align:left;font-size:14.5px;font-weight:700;border-bottom:1px solid #e3e7ec}\n.ag-compare td{padding:14px 16px;text-align:left;vertical-align:top;border:0;border-bottom:1px solid #eef1f4;color:#1f2733;font-weight:400}\n.ag-compare tbody tr:last-child td{border-bottom:0}\n\u003c\/style\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003e10\" Neck\u003c\/strong\u003e black steel butterfly damper carries air through the opening through a ceiling opening. Powder-coated steel resists dents and rust for years of use, a stronger choice than lightweight plastic covers. This butterfly damper adjusts or shuts the airflow, so comfort can be set room by room. Select this butterfly damper by its \u003cstrong\u003eneck size\u003c\/strong\u003e size, not the overall face size, so it seats correctly on the first fit.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteel construction:\u003c\/strong\u003e Steel keeps the butterfly damper rigid during installation and resists warping over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack finish:\u003c\/strong\u003e The black finish coordinates with common flooring, trim, and hardware.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable airflow:\u003c\/strong\u003e The built-in damper controls the volume of air (open to closed).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRight-fit sizing:\u003c\/strong\u003e Ordered by neck size, this butterfly damper matches standard duct dimensions and cuts wrong-size returns.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDimensions and Specifications\u003c\/h2\u003e\u003cdiv class=\"ag-spec\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eButterfly Damper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAirflow function\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAirflow control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal opening\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10\" Neck\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverall face dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11-1\/2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting location\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCeiling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAirflow control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAdjustable damper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrder by\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNeck Size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePack quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMPN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e410102-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAirGrilles.com\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eIs This the Right Vent for Your Opening?\u003c\/h2\u003e\u003cp\u003eChoose this butterfly damper to regulate the supply airflow behind a round ceiling diffuser. It installs inside the duct or neck behind the diffuser, and the plastic key handle turns it from fully open to closed. This is an airflow-control damper, not a supply or return grille.\u003c\/p\u003e\u003ch2\u003eHow to Measure for This Vent\u003c\/h2\u003e\u003cp\u003eMeasure the round duct or collar the diffuser connects to and match it to the \u003cstrong\u003e10\" Neck\u003c\/strong\u003e neck size above. Do not measure the outer panel. The overall face measures \u003cstrong\u003e11-1\/2\"\u003c\/strong\u003e.\u003c\/p\u003e\u003ch2\u003eInstallation\u003c\/h2\u003e\u003cp\u003eFit the butterfly damper into the round duct or neck behind the diffuser. Align it in the airway, then use the plastic key handle to open or close it to the airflow you want. No face screws are needed; the diffuser mounts over it.\u003c\/p\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e1 x butterfly damper\u003c\/li\u003e\n\u003cli\u003e1 x plastic key handle\u003c\/li\u003e\n\u003cli\u003eMounting screws\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDuctwork, wall anchors, and installation tools are not included.\u003c\/p\u003e\u003ch2\u003eCare and Maintenance\u003c\/h2\u003e\u003cp\u003eClean the butterfly damper with a soft, damp cloth and mild soap. Avoid abrasive chemicals that can damage the black finish. Dry the surface to keep moisture off the metal.\u003c\/p\u003e\u003ch2\u003eCompare Similar Options\u003c\/h2\u003e\u003cp\u003eUse this comparison to confirm the butterfly damper matches your opening and airflow need.\u003c\/p\u003e\u003cdiv class=\"ag-compare\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eOption\u003c\/th\u003e\n\u003cth\u003eBest for\u003c\/th\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003cth\u003eInstallation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThis butterfly damper\u003c\/td\u003e\n\u003ctd\u003eAirflow control behind a diffuser\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003ctd\u003eIn-duct\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRound ceiling diffuser\u003c\/td\u003e\n\u003ctd\u003eRound-neck ceiling supply\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003ctd\u003eCeiling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustable supply register\u003c\/td\u003e\n\u003ctd\u003eSupply with volume control\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003ctd\u003eWall or ceiling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e","brand":"AirGrilles.com","offers":[{"title":"Default Title","offer_id":42807936516272,"sku":"HND-DAMP-10-BL-1-fbm","price":23.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/7201\/1696\/files\/10bl-1_99a16375-7182-434e-b030-0dbae1541cb4.png?v=1775513642","url":"https:\/\/airgrilles.com\/products\/butterfly-damper-with-handle-10-black-steel","provider":"AirGrilles.com","version":"1.0","type":"link"}