{"product_id":"lambro-industries-1422wtp-single-flap-louver-vent-4-in","title":"Lambro Industries 1422WTP Single Flap Louver Vent 4 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe LAMBRO INDUSTRIES 1422WTP is a single-flap louver vent designed for 4-inch round duct terminations. Constructed from white plastic, it provides a clean, low-profile wall or exterior termination point for dryer exhaust, bathroom exhaust fans, and similar residential ventilation applications. The unit includes an 11-inch tail pipe for direct duct connection. The single-flap damper closes when the connected fan is off, blocking backdraft, pests, and outside air infiltration. Installation requires no special tools and fits standard 4-inch round duct collar openings.\u003c\/p\u003e\u003cp\u003eThis louver vent is suited for residential applications where a 4-inch round exhaust duct terminates through an exterior wall. Typical installations include dryer vents, bath exhaust fan terminations, and kitchen range hood extensions. The white finish blends with standard exterior trim and siding. The included tail pipe simplifies rough-in by providing a direct coupling point to the duct run without additional fittings.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSingle-flap damper closes automatically when airflow stops, limiting backdraft and pest entry\u003c\/li\u003e\n\u003cli\u003eIncludes 11-inch tail pipe for direct connection to 4-inch round duct\u003c\/li\u003e\n\u003cli\u003eWhite plastic construction resists moisture and corrosion on exterior surfaces\u003c\/li\u003e\n\u003cli\u003eFits standard 4-inch round duct collar openings\u003c\/li\u003e\n\u003cli\u003eSold individually; package quantity of 15 units available for multi-unit or contractor purchasing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and new-installation louver vent for residential 4-inch round exhaust duct terminations.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstalled by HVAC technicians, plumbers, or general contractors during rough-in or vent-termination work. Before installation, ensure the exhaust fan or dryer is powered down and the duct run is clear. Exterior wall penetration should be sealed around the flange with appropriate weatherproof caulk to prevent moisture intrusion. Follow local building codes and manufacturer guidelines for minimum clearances from windows, doors, and gas appliance flues.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuct Size\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTail Pipe Length\u003c\/strong\u003e: 11 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamper Type\u003c\/strong\u003e: Single Flap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 3.15 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: LAMBRO INDUSTRIES\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1422WTP\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LAMBRO INDUSTRIES","offers":[{"title":"Default Title","offer_id":51524599087410,"sku":"1422WTP","price":156.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2bc573b613ca28a6fcacb701297022aa.jpg?v=1785452758","url":"https:\/\/voomisupply.com\/products\/lambro-industries-1422wtp-single-flap-louver-vent-4-in","provider":"Voomi Supply","version":"1.0","type":"link"}