{"product_id":"seal-tite-1728-16-spin-in-collar-16-in-tab-mount-with-damper","title":"Seal-tite 1728-16 Spin-in Collar 16 in Tab Mount with Damper","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SEAL-TITE 1728-16 is a round duct board spin-in collar designed to create a 16-inch branch connection in duct board HVAC systems. The collar installs into a field-cut opening in duct board and locks in place using integral mounting tabs that grip the duct board surface. An integrated damper blade at the collar throat provides on-site airflow control, allowing technicians to balance air distribution across multiple branch runs. This fitting is a standard component in low-pressure residential and light commercial supply air systems where duct board is the primary trunk material.\u003c\/p\u003e\u003cp\u003eThis collar is used in duct board trunk-and-branch layouts where a 16-inch round branch connection is required for round rigid pipe or flexible duct. It is well suited to residential construction and light commercial HVAC installations where duct board plenum or trunk systems feed multiple zones. The tab-mount design eliminates the need for screws or adhesive at the collar body during rough-in, and the built-in damper removes the need for a separate volume control damper at the takeoff point. HVAC installers and sheet metal mechanics are the primary trades that work with this fitting.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e16-inch round collar for duct board branch takeoff connections\u003c\/li\u003e\n\u003cli\u003eTab-mount design secures to duct board without additional fasteners at the collar flange\u003c\/li\u003e\n\u003cli\u003eIntegrated damper provides airflow volume control at the branch connection point\u003c\/li\u003e\n\u003cli\u003eAccepts round rigid pipe or flexible duct at the collar outlet\u003c\/li\u003e\n\u003cli\u003eSupports balanced air distribution across multi-branch supply systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard installation fitting for duct board trunk systems requiring a 16-inch round spin-in collar with integrated damper.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by licensed HVAC technicians or qualified sheet metal mechanics. Shut down the air handling unit and de-energize the system before cutting into the duct board or installing any fittings. Use a proper hole saw or duct board cutting tool sized for a 16-inch opening to ensure a clean, tight fit. Secure all downstream flex duct or rigid pipe connections with approved clamps and seal per local mechanical code requirements.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Size\u003c\/strong\u003e: 16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Tab Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamper\u003c\/strong\u003e: Integrated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuct Type Compatibility\u003c\/strong\u003e: Duct Board\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBranch Connection\u003c\/strong\u003e: Round Pipe or Flex Duct\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SEAL-TITE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1728-16\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SEAL-TITE","offers":[{"title":"Default Title","offer_id":51347243106610,"sku":"1728-16","price":43.19,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310554912.jpg?v=1782100079","url":"https:\/\/voomisupply.com\/products\/seal-tite-1728-16-spin-in-collar-16-in-tab-mount-with-damper","provider":"Voomi Supply","version":"1.0","type":"link"}