{"product_id":"io-bn-round-sd-balancing-register","title":"iO HVAC Controls BN Series Round Barometric Backdraft Damper (SD)","description":"\u003ch2\u003eiO HVAC Controls BN Series Round Barometric Backdraft Damper (SD)\u003c\/h2\u003e\n\u003cp\u003eThe iO HVAC Controls BN Series barometric backdraft damper allows air to flow in one direction while automatically preventing unwanted backdraft, supporting balanced, efficient ventilation. Built for residential and light-commercial HVAC systems, this passive barometric damper helps maintain healthy airflow and consistent indoor comfort.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose the BN Series\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-way airflow\u003c\/strong\u003e — automatically prevents unwanted backdraft for balanced ventilation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePassive and maintenance-free\u003c\/strong\u003e — barometric operation with no wiring or power required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt to last\u003c\/strong\u003e — durable galvanized-steel housing for quiet, dependable performance season after season.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eActuator Type:\u003c\/strong\u003e Barometric\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Static Pressure:\u003c\/strong\u003e 0.5\" WC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlade Design:\u003c\/strong\u003e Single-Blade\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Panels:\u003c\/strong\u003e Standalone (barometric)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIdeal For\u003c\/h3\u003e\n\u003cp\u003eResidential and light-commercial ventilation systems that need reliable one-way airflow and backdraft prevention.\u003c\/p\u003e","brand":"iO-HVAC","offers":[{"title":"6\"","offer_id":51453794287783,"sku":"BN-06-SD","price":475.08,"currency_code":"USD","in_stock":true},{"title":"8\"","offer_id":51453794320551,"sku":"BN-08-SD","price":475.08,"currency_code":"USD","in_stock":true},{"title":"10\"","offer_id":51453794353319,"sku":"BN-10-SD","price":475.08,"currency_code":"USD","in_stock":true},{"title":"12\"","offer_id":51453794386087,"sku":"BN-12-SD","price":475.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0727\/0416\/4007\/files\/iO-14163_aa548d5d-8f1c-42d4-a836-e593c6909338.jpg?v=1790959651","url":"https:\/\/theacoutlet.com\/products\/io-bn-round-sd-balancing-register","provider":"The AC Outlet","version":"1.0","type":"link"}