{"product_id":"4-inch-backdraft-damper-inline-duct-connector-round-plastic-check-valve-b09m8tmps2","title":"4 Inch Backdraft Damper – Inline Duct Connector – Round Plastic Check Valve","description":"\u003carticle\u003e\u003csection\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eFrom the materials to the finish, the 4 Inch Backdraft Damper (female) – Inline Duct Connector – Round Plastic Check Valve for HVAC Exhaust \u0026amp; Ventilation Systems – One Way Airflow Vent Flap – Backflow Preventer with Gravity Flap reflects lightweight choices that support satisfying experience in common scenarios. Constructed using Plastic, measuring 4 Inch, available in White. Notable features include compatibility male and male fit, contributing to its versatile character.\u003c\/p\u003e\u003c\/section\u003e\u003csection\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCOMPATIBILITY – Male fit coupler is designed for standard round ventilation ducts used in bathroom fans, inline extractor fans, hydroponics setups, and general air movement systems.\u003c\/li\u003e\n\u003cli\u003eDURABLE PLASTIC CONSTRUCTION – Air Duct Connector is made from lightweight, corrosion-resistant PVC that performs reliably in temperatures from 23°F to 140°F, making it suitable for everyday ventilation use.\u003c\/li\u003e\n\u003cli\u003eBUILT-IN BACKDRAFT PROTECTION – Designed to allow airflow in one direction only, helping prevent reverse air movement, drafts, and unwanted odors entering the duct system.\u003c\/li\u003e\n\u003cli\u003eQUIET \u0026amp; LOW-RESISTANCE OPERATION – Balanced lightweight flap opens easily under airflow and closes gently when the fan stops, maintaining smooth, efficient ventilation without mechanical noise.\u003c\/li\u003e\n\u003cli\u003eEASY INSERT INSTALLATION – Simple push-in design allows quick installation inside ducting without complex tools, suitable for residential and commercial ventilation setups.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection\u003e\u003ch2\u003eWhy Choose the LIRAST 4 Inch Backdraft Damper (female) – Inline Duct Connector – Round Plastic Check Valve for HVAC Exhaust \u0026amp; Ventilation Systems – One Way Airflow Vent Flap – Backflow Preventer with Gravity Flap\u003c\/h2\u003e\n\u003cp\u003eThe 4 Inch Backdraft Damper (female) – Inline Duct Connector – Round Plastic Check Valve for HVAC Exhaust \u0026amp; Ventilation Systems – One Way Airflow Vent Flap – Backflow Preventer with Gravity Flap approaches ventilation equipment from a value-driven perspective, with compatibility male that produces practical use. A solid choice for users who value substance.\u003c\/p\u003e\u003c\/section\u003e\u003csection\u003e\u003ch2\u003eBest For\u003c\/h2\u003e\n\u003cp\u003eThe LIRAST 4 Inch Backdraft Damper (female) – Inline Duct Connector – Round Plastic Check Valve for HVAC Exhaust \u0026amp; Ventilation Systems – One Way Airflow Vent Flap – Backflow Preventer with Gravity Flap is best suited for: standard round ventilation ducts used in bathroom fans, everyday ventilation use, residential and commercial ventilation setups.\u003c\/p\u003e\u003c\/section\u003e\u003csection\u003e\u003ch2\u003eQuick Summary\u003c\/h2\u003e\n\u003cp\u003eThe LIRAST 4 Inch Backdraft Damper (female) – Inline Duct Connector – Round Plastic Check Valve for HVAC Exhaust \u0026amp; Ventilation Systems – One Way Airflow Vent Flap – Backflow Preventer with Gravity Flap is a Ventilation Equipment product by LIRAST. Size: 4 Inch. Material: Plastic. Brand: LIRAST. Color: White. Item dimensions L x W x H: 4 x 4 x 2.4 inches. Price: $17.98.\u003c\/p\u003e\u003c\/section\u003e\u003csection\u003e\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e4 Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePlastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLIRAST\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eItem dimensions L x W x H\u003c\/td\u003e\n\u003ctd\u003e4 x 4 x 2.4 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Type\u003c\/td\u003e\n\u003ctd\u003ePipe connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExterior Finish\u003c\/td\u003e\n\u003ctd\u003ePlastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Pieces\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnit Count\u003c\/td\u003e\n\u003ctd\u003e1.0 Count\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/section\u003e\u003c\/article\u003e","brand":"LIRAST","offers":[{"title":"Default Title","offer_id":48659749306622,"sku":"SPH-B09M8TMPS2","price":17.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/2750\/9502\/files\/61X698-LG_L._AC_SX679.jpg?v=1785387737","url":"https:\/\/smilecartrendz.com\/products\/4-inch-backdraft-damper-inline-duct-connector-round-plastic-check-valve-b09m8tmps2","provider":"PureLux Air","version":"1.0","type":"link"}